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1. Hossain D, Meiers I, Qian J, MacLennan GT, Bostwick DG: Prostatic leiomyoma with atypia: follow-up study of 10 cases. Ann Diagn Pathol; 2008 Oct;12(5):328-32
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  • The histologic findings consisted of a solid circumscribed expansile stromal nodule with abundant smooth muscle and variable numbers of atypical bizarre giant cells.
  • The cells of the tumor displayed intense immunoreactivity for desmin, actin, and androgen receptor and weak to moderate reactivity for vimentin.
  • Despite worrisome histologic appearance, a benign clinical behavior was seen in all cases.
  • [MeSH-minor] Actins / metabolism. Aged. Aged, 80 and over. Biomarkers, Tumor / metabolism. Desmin / metabolism. Humans. Immunohistochemistry. Male. Middle Aged. Neoplasm Recurrence, Local. Receptors, Androgen / metabolism. Treatment Outcome. Vimentin / metabolism

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  • (PMID = 18774494.001).
  • [ISSN] 1532-8198
  • [Journal-full-title] Annals of diagnostic pathology
  • [ISO-abbreviation] Ann Diagn Pathol
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Actins; 0 / Biomarkers, Tumor; 0 / Desmin; 0 / Receptors, Androgen; 0 / Vimentin
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2. Ricke WA, Ishii K, Ricke EA, Simko J, Wang Y, Hayward SW, Cunha GR: Steroid hormones stimulate human prostate cancer progression and metastasis. Int J Cancer; 2006 May 1;118(9):2123-31
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  • Untreated mUGM+BPH-1 TRs contained a well organized differentiated epithelium surrounded by smooth muscle stroma similar to developing prostate.
  • In [T+E2]-implanted mice, mUGM+BPH-1 TRs formed carcinomas that contained a fibrous connective tissue stroma permeating the tumor; smooth muscle when present was associated with vasculature.
  • Epithelial cells isolated from untreated mUGM+BPH-1 TRs exhibited benign histology and formed small nontumorigenic grafts when subsequently transplanted into athymic nude mice.
  • [MeSH-minor] Animals. Cell Proliferation. Disease Models, Animal. Disease Progression. Epithelial Cells / physiology. Humans. Male. Mesoderm. Mice. Mice, Nude. Neoplasm Metastasis. Prostate / cytology. Transplantation, Heterologous

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  • [Copyright] 2005 Wiley-Liss, Inc.
  • (PMID = 16331600.001).
  • [ISSN] 0020-7136
  • [Journal-full-title] International journal of cancer
  • [ISO-abbreviation] Int. J. Cancer
  • [Language] eng
  • [Grant] United States / NIA NIH HHS / AG / AG0026604; United States / NCI NIH HHS / CA / CA84294; United States / NCI NIH HHS / CA / CA89520; United States / NCI NIH HHS / CA / CA96403; United States / NCI NIH HHS / CA / CA97725-01; United States / NICHD NIH HHS / HD / HD007263; United States / NCI NIH HHS / CN / N01CN15114-MAO; United States / NCI NIH HHS / CA / U01 CA96403
  • [Publication-type] Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.
  • [Publication-country] United States
  • [Chemical-registry-number] 3XMK78S47O / Testosterone; 4TI98Z838E / Estradiol
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3. Yang Y, Nie X, Lu J, Lu XY, Wei YY, Wang H, Han ZH, Chen ZH, Zheng J: [Mixed epithelial and stromal tumor of kidney]. Zhonghua Bing Li Xue Za Zhi; 2006 Jan;35(1):29-31
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  • [Title] [Mixed epithelial and stromal tumor of kidney].
  • OBJECTIVE: To study the clinicopathological features and differential diagnoses of mixed epithelial and stromal tumor of the kidney.
  • METHODS: Clinical and pathological characteristics of 4 cases of mixed epithelial and stromal tumor of the kidney were studied.
  • Stromal elements essentially consisted of spindle cells, with thick-walled blood vessels and bands of smooth muscle cells as distinctive features of the tumor.
  • CONCLUSIONS: Mixed epithelial and stromal tumor of the kidney is a benign neoplasm with distinct histopathological features.
  • [MeSH-minor] Actins / metabolism. Adult. Diagnosis, Differential. Female. Follow-Up Studies. Humans. Male. Middle Aged. Muscle, Smooth / metabolism. Nephrectomy / methods. Receptors, Estrogen / metabolism. Receptors, Progesterone / metabolism

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  • (PMID = 16608646.001).
  • [ISSN] 0529-5807
  • [Journal-full-title] Zhonghua bing li xue za zhi = Chinese journal of pathology
  • [ISO-abbreviation] Zhonghua Bing Li Xue Za Zhi
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] China
  • [Chemical-registry-number] 0 / Actins; 0 / Receptors, Estrogen; 0 / Receptors, Progesterone
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4. Awonuga AO, Rotas M, Imudia AN, Choi C, Khulpateea N: Recurrent benign metastasizing leiomyoma after hysterectomy and bilateral salpingo-oophorectomy. Arch Gynecol Obstet; 2008 Oct;278(4):373-6
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  • [Title] Recurrent benign metastasizing leiomyoma after hysterectomy and bilateral salpingo-oophorectomy.
  • BACKGROUND: Benign uterine leiomyomas are sometimes found in association with benign smooth muscle tumors outside the confines of the uterus and are given the name benign metastasizing leiomyomas (BML).
  • PATIENTS: Our patients, presented with multiple abdominal masses 6 years after their initial surgery for benign leiomyoma.
  • At exploratory laparotomy multiple benign leiomyomas were resected, and in one case a 2.2 cm leiomyoma was also resected from the left lower lobe of the lung.
  • RESULTS: Pathology revealed benign leiomyomas with no cytological atypia and a mitotic count of <5 per 10 high power fields (hpf).
  • CONCLUSION: Benign metastasizing leiomyoma rarely follow TAH/BSO in patients with uterine myoma and estrogen replacement therapy may play a role in such occurrence.
  • [MeSH-major] Leiomyomatosis / pathology. Lung Neoplasms / secondary. Neoplasm Recurrence, Local / pathology. Uterine Neoplasms / pathology

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  • (PMID = 18259767.001).
  • [ISSN] 0932-0067
  • [Journal-full-title] Archives of gynecology and obstetrics
  • [ISO-abbreviation] Arch. Gynecol. Obstet.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Germany
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5. Chivukula M, Domfeh A, Carter G, Tseng G, Dabbs DJ: Characterization of high-grade ductal carcinoma in situ with and without regressive changes: diagnostic and biologic implications. Appl Immunohistochem Mol Morphol; 2009 Dec;17(6):495-9
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  • The presence of RC in these neoplasms may signify some degree of host response to tumor and seems to be a sign of poor prognosis for some neoplasms.
  • Reduced expression of myoepithelial markers (p63 and smooth muscle heavy chain myosin) were seen more frequently in the HGDCIS group with RC than without RC cases.
  • It is also critically important to recognize HGDCIS-RC for diagnostic purposes, as the differential diagnosis of RC includes, benign associations such as papilloma, fibrocystic changes and periductal mastitis.

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  • (PMID = 19407654.001).
  • [ISSN] 1533-4058
  • [Journal-full-title] Applied immunohistochemistry & molecular morphology : AIMM
  • [ISO-abbreviation] Appl. Immunohistochem. Mol. Morphol.
  • [Language] ENG
  • [Publication-type] Journal Article; Review
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor
  • [Number-of-references] 13
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6. Samimi M, Maître F, Estève E: [Hyperkeratotic lesion of the nipple revealing cutaneous leiomyoma]. Ann Dermatol Venereol; 2008 Aug-Sep;135(8-9):571-4
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  • BACKGROUND: Leiomyoma of the nipple and areola is a rare benign neoplasm.
  • Surgical excision revealed a proliferation of smooth muscle fibres, leading to diagnosis of leiomyoma.
  • A hyperkeratotic lesion of the nipple may be associated with benign or malignant neoplasms, hamartoma or chronic dermatoses, or it may be idiopathic.

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  • (PMID = 18789291.001).
  • [ISSN] 0151-9638
  • [Journal-full-title] Annales de dermatologie et de vénéréologie
  • [ISO-abbreviation] Ann Dermatol Venereol
  • [Language] fre
  • [Publication-type] Case Reports; English Abstract; Journal Article
  • [Publication-country] France
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7. Liu X, Ma YQ, Wang J: [Prepubertal-type vulva fibroma: a clinicopathological study of two cases]. Zhonghua Bing Li Xue Za Zhi; 2010 Jan;39(1):40-3
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  • Grossly, cut surface of the tumor appeared as the gray fibrous tissue without any definited lump detected.
  • The tumor cells extended downward under the epithelium and infiltrated between the fat tissue, nerve fibers as well as the capillaries making a lesion looked somewhat like a harmatoma.
  • Immunohistochemically, the spindle cells were uniformly positive for vimentin, weakly positive for CD34, and negative for alpha-smooth muscle actin (SMA), muscle specific actin (HHF35), desmin, h-caldesmon, CD99, S-100 protein, bcl-2, beta-catenin, estrogen and progesterone receptors.
  • CONCLUSIONS: PVF is a benign mesenchymal lesion with a predilection of involving the vulva of prepubertal girls or adults in rare cases.
  • [MeSH-minor] Antigens, CD34 / metabolism. Child. Diagnosis, Differential. Female. Humans. Middle Aged. Myxoma / pathology. Neoplasm Recurrence, Local. Vulva / pathology. Vulva / surgery

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  • (PMID = 20388398.001).
  • [ISSN] 0529-5807
  • [Journal-full-title] Zhonghua bing li xue za zhi = Chinese journal of pathology
  • [ISO-abbreviation] Zhonghua Bing Li Xue Za Zhi
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article; Review
  • [Publication-country] China
  • [Chemical-registry-number] 0 / Antigens, CD34; 0 / Vimentin
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8. Tse GM, Tan PH, Lui PC, Gilks CB, Poon CS, Ma TK, Law BK, Lam WW: The role of immunohistochemistry for smooth-muscle actin, p63, CD10 and cytokeratin 14 in the differential diagnosis of papillary lesions of the breast. J Clin Pathol; 2007 Mar;60(3):315-20
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  • [Title] The role of immunohistochemistry for smooth-muscle actin, p63, CD10 and cytokeratin 14 in the differential diagnosis of papillary lesions of the breast.
  • The evaluation of myoepithelial cells can be helpful, with benign papilloma showing a continuous myoepithelial cell layer, which becomes attenuated or absent in malignant papillary lesions.
  • METHODS: A large series of 100 papillomas (28 papillomas with florid epithelial hyperplasia) and 68 papillary carcinomas (9 invasive, 44 in situ, and 15 ductal carcinomas in situ (DCIS) involving papillomas) of the breast were stained for myoepithelial cells by immunohistochemistry using antibodies to smooth-muscle actin (SMA), p63, CD10 and cytokeratin (CK) 14.
  • [MeSH-major] Biomarkers, Tumor / metabolism. Breast Neoplasms / metabolism
  • [MeSH-minor] Actins / metabolism. Adult. Aged. Aged, 80 and over. Carcinoma, Intraductal, Noninfiltrating / metabolism. Carcinoma, Intraductal, Noninfiltrating / pathology. Carcinoma, Papillary / metabolism. Carcinoma, Papillary / pathology. DNA-Binding Proteins / metabolism. Diagnosis, Differential. Female. Humans. Keratin-14 / metabolism. Middle Aged. Neoplasm Proteins / metabolism. Neprilysin / metabolism. Papilloma / metabolism. Papilloma / pathology. Papilloma, Intraductal / metabolism. Papilloma, Intraductal / pathology. Trans-Activators / metabolism. Transcription Factors. Tumor Suppressor Proteins / metabolism

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  • (PMID = 16698948.001).
  • [ISSN] 0021-9746
  • [Journal-full-title] Journal of clinical pathology
  • [ISO-abbreviation] J. Clin. Pathol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Actins; 0 / Biomarkers, Tumor; 0 / DNA-Binding Proteins; 0 / Keratin-14; 0 / Neoplasm Proteins; 0 / TP63 protein, human; 0 / Trans-Activators; 0 / Transcription Factors; 0 / Tumor Suppressor Proteins; EC 3.4.24.11 / Neprilysin
  • [Other-IDs] NLM/ PMC1860581
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9. Gaitan Cepeda LA, Quezada Rivera D, Tenorio Rocha F, Leyva Huerta ER, Mendez Sánchez ER: Vascular leiomyoma of the oral cavity. Clinical, histopathological and immunohistochemical characteristics. Presentation of five cases and review of the literature. Med Oral Patol Oral Cir Bucal; 2008 Aug;13(8):E483-8
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  • Leiomyoma, a benign neoplasia arising from smooth muscle is an uncommon neoplasia of the oral cavity.
  • The immunocharacteristics of VLOC neoplastic cells were: alpha smooth muscle (+); vimentin (+), desmin (+), CD34 (-) and S-100 protein (-).
  • Differential diagnosis of VLOC with fusocellular neoplasm is discussed.

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  • (PMID = 18667980.001).
  • [ISSN] 1698-6946
  • [Journal-full-title] Medicina oral, patología oral y cirugía bucal
  • [ISO-abbreviation] Med Oral Patol Oral Cir Bucal
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article; Review
  • [Publication-country] Spain
  • [Number-of-references] 23
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10. Yen TH, Chen Y, Fu JF, Weng CH, Tian YC, Hung CC, Lin JL, Yang CW: Proliferation of myofibroblasts in the stroma of renal oncocytoma. Cell Prolif; 2010 Jun;43(3):287-96
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  • OBJECTIVES: Myofibroblasts are a vital component of stroma of many malignant neoplasms, but it is not yet established whether stromal myofibroblasts also exist in benign tumours such as oncocytoma of the kidney.
  • Wnt/beta-catenin signalling was not implicated in this neoplasm, as there was no loss of E-cadherin membranous localization or expression of intranuclear beta-catenin in the cells.
  • Importantly, alpha-smooth muscle actin (SMA)-immunostaining established the myofibroblastic nature of many of the stromal cells.
  • CONCLUSIONS: Renal oncocytomas were composed of two independent compartments: benign oncocytes and pronounced fibrotic stroma, which consisted of proliferating myofibroblasts (SMA- and MIB-1-positive) which were associated with excessive deposition of extracellular matrix (periodic acid Schiff-component, collagen I-, collagen III- and fibronectin-positive, and desmin- and human caldesmon-negative).
  • [MeSH-minor] Aged. Biomarkers, Tumor / metabolism. Cell Proliferation. Extracellular Matrix / metabolism. Extracellular Matrix / pathology. Extracellular Matrix Proteins / metabolism. Female. Humans. Male. Middle Aged. Myoblasts / metabolism. Myoblasts / pathology. Neoplasm Invasiveness / pathology. Neoplasm Invasiveness / physiopathology. Stromal Cells / metabolism. Stromal Cells / pathology

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  • (PMID = 20412129.001).
  • [ISSN] 1365-2184
  • [Journal-full-title] Cell proliferation
  • [ISO-abbreviation] Cell Prolif.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 0 / Extracellular Matrix Proteins
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11. Mentzel T, Kutzner H: Dermatomyofibroma: clinicopathologic and immunohistochemical analysis of 56 cases and reappraisal of a rare and distinct cutaneous neoplasm. Am J Dermatopathol; 2009 Feb;31(1):44-9
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Dermatomyofibroma: clinicopathologic and immunohistochemical analysis of 56 cases and reappraisal of a rare and distinct cutaneous neoplasm.
  • Dermatomyofibroma represents a rare and distinct benign cutaneous mesenchymal neoplasm of fibroblastic/myofibroblastic differentiation.
  • Histologically, an ill-defined, plaque-like dermal neoplasm of varying cellularity was seen in all cases, composed of bland spindle-shaped tumor cells often oriented parallel to the overlying epidermis.
  • Immunohistochemically, tumor cells in 11 of 48 cases tested stained positively for alpha-smooth muscle actin, and a focal expression of this marker was noted in 20 cases.
  • Dermatomyofibroma represents a benign fibroblastic/myofibroblastic dermal neoplasm.
  • [MeSH-major] Histiocytoma, Benign Fibrous / metabolism. Histiocytoma, Benign Fibrous / pathology. Skin Neoplasms / metabolism. Skin Neoplasms / pathology

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  • (PMID = 19155724.001).
  • [ISSN] 1533-0311
  • [Journal-full-title] The American Journal of dermatopathology
  • [ISO-abbreviation] Am J Dermatopathol
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
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12. Fang HQ, Yang J, Zhang FF, Cui Y, Han AJ: Clinicopathological features of gastric glomus tumor. World J Gastroenterol; 2010 Sep 28;16(36):4616-20
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  • [Title] Clinicopathological features of gastric glomus tumor.
  • AIM: To study the clinicopathological features of gastric glomus tumor and review the related Chinese literature published in 1990-2010.
  • METHODS: A case of gastric glomus tumor was reported.
  • Clinicopathological findings in 56 cases of gastric glomus tumor were analyzed.
  • RESULTS: Gastric glomus tumor was far more common in women than in men with a female to male ratio of 1.6:1.
  • The tumor was located in antrum of the stomach.
  • The greatest diameter of the tumor was 0.8-11 cm.
  • Histologically, the tumor was comprised of nests of glomus cells surrounding the capillaries.
  • Vimentin, smooth muscle actin and actin were expressed in the tumor.
  • CONCLUSION: Gastric glomus tumor is a rare benign mesenchymal neoplasm.
  • Differential diagnosis includes gastrointestinal stromal tumor, paraganglioma and carcinoid tumor.
  • [MeSH-major] Glomus Tumor. Stomach Neoplasms

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  • (PMID = 20857536.001).
  • [ISSN] 2219-2840
  • [Journal-full-title] World journal of gastroenterology
  • [ISO-abbreviation] World J. Gastroenterol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] China
  • [Other-IDs] NLM/ PMC2945497
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13. Piura B, Rabinovich A, Sinelnikov I, Delgado B: Tailgut cyst initially misdiagnosed as ovarian tumor. Arch Gynecol Obstet; 2005 Oct;272(4):301-3
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Tailgut cyst initially misdiagnosed as ovarian tumor.
  • It is usually benign and located in the retrorectal/presacral space.
  • The initial diagnosis was neoplasm of the right ovary.
  • Microscopic examination revealed that the wall of the cystic mass consists of a lining epithelium composed of columnar and squamous epithelium and a stroma composed of fibrous tissue containing scattered discontinuous bundles of smooth muscle fibers.

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  • (PMID = 16041543.001).
  • [ISSN] 0932-0067
  • [Journal-full-title] Archives of gynecology and obstetrics
  • [ISO-abbreviation] Arch. Gynecol. Obstet.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Germany
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14. Bajaj MS, Pushker N, Kashyap S, Sen S, Vengayil S, Chaturvedi A: Fibrous histiocytoma of the lacrimal gland. Ophthal Plast Reconstr Surg; 2007 Mar-Apr;23(2):145-7
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  • Fibrous histiocytoma, a primary mesenchymal tumor of the orbit, is known to arise from various ocular and adnexal tissues.
  • We are unable to find a published report of this tumor originating from the lacrimal gland.
  • We report a case of a benign fibrous histiocytoma of the lacrimal gland in an 11 year old girl who presented with painless, progressive eyelid swelling and mild proptosis.
  • The tumor was completely excised by anterolateral orbitotomy.
  • Light microscopy showed a spindle cell tumor arising from the lacrimal gland.
  • The tumor cells were arranged in a characteristic storiform (cartwheel) pattern with no pleomorphism or mitotic figures.
  • Immunohistochemically, the tumor cells were focally positive for CD-68 and negative for S-100, smooth muscle actin, vimentin, and CD-34, which ruled out neurofibroma, leiomyoma, solitary fibrous tumor, and hemangiopericytoma.
  • Based on these features, a diagnosis of benign fibrous histiocytoma was made.
  • [MeSH-major] Eye Neoplasms / pathology. Histiocytoma, Benign Fibrous / pathology. Lacrimal Apparatus Diseases / pathology
  • [MeSH-minor] Biomarkers, Tumor / analysis. Child. Female. Humans. Neoplasm Proteins / analysis. Tomography, X-Ray Computed

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  • (PMID = 17413632.001).
  • [ISSN] 0740-9303
  • [Journal-full-title] Ophthalmic plastic and reconstructive surgery
  • [ISO-abbreviation] Ophthal Plast Reconstr Surg
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 0 / Neoplasm Proteins
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15. Senay S, Kaya U, Cagil H, Demirkiran F, Alhan C: Surgical management of intravenous leiomyoma with cardiac extension. Do we need total circulatory arrest? Thorac Cardiovasc Surg; 2007 Aug;55(5):322-3
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • Intravenous leiomyoma of the uterus is a histologically benign, smooth-muscle tumor and may extend through the inferior vena cava into the right atrium.
  • Surgical treatment is mandatory and single-stage resection of the tumor has gained wide acceptance as a safe and easy procedure.
  • [MeSH-major] Angiomyoma / pathology. Angiomyoma / surgery. Heart Arrest, Induced. Neoplasm Recurrence, Local / pathology. Uterine Neoplasms / pathology. Uterus / blood supply. Uterus / pathology. Vena Cava, Inferior / pathology

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  • (PMID = 17629864.001).
  • [ISSN] 0171-6425
  • [Journal-full-title] The Thoracic and cardiovascular surgeon
  • [ISO-abbreviation] Thorac Cardiovasc Surg
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Germany
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16. Jha P, Moosavi C, Fanburg-Smith JC: Giant cell fibroblastoma: an update and addition of 86 new cases from the Armed Forces Institute of Pathology, in honor of Dr. Franz M. Enzinger. Ann Diagn Pathol; 2007 Apr;11(2):81-8
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  • All cases had benign behavior, but almost half recurred.
  • The caveat was mistaking this tumor for a malignancy.
  • They proposed a relationship of this childhood tumor to dermatofibrosarcoma protuberans (DFSP).
  • Most cases were dermal and subcutaneous, 3 purely dermal, and 5 involved superficial skeletal muscle.
  • Two cases of pure GCF recurred as a hybrid tumor with DFSP areas, one of these with hypercellular DFSP.
  • Most cases studied were positive for CD34 (more intense in DFSP than relatively hypocellular GCF areas) and negative for smooth muscle actin, desmin, HMB-45, keratin, and S100 protein.
  • Additional observations of marked perivascular and onionskin-like chronic inflammation and consistent hemorrhage may aid in the diagnosis of this previously well-described tumor.
  • [MeSH-minor] Adolescent. Adult. Biomarkers, Tumor / metabolism. Child. Child, Preschool. Female. History, 20th Century. Humans. Infant. Male. Middle Aged. Neoplasm Recurrence, Local / pathology. Registries

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  • (PMID = 17349565.001).
  • [ISSN] 1092-9134
  • [Journal-full-title] Annals of diagnostic pathology
  • [ISO-abbreviation] Ann Diagn Pathol
  • [Language] eng
  • [Publication-type] Biography; Historical Article; Journal Article; Portraits
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor
  • [Personal-name-as-subject] Enzinger FM
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17. Svec A, Velenská Z: Renal epithelioid angiomyolipoma--a close mimic of renal cell carcinoma. Report of a case and review of the literature. Pathol Res Pract; 2005;200(11-12):851-6
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  • The epithelioid variant of angiomyolipoma (EAML) is a rare tumor of unpredictable behavior that is composed of epithelioid, spindle, and giant cells and contains no or only a minimal amount of lipomatous tissue.
  • Grossly, a well-demarcated, spheroid, largely hemorrhagic tumor measuring 4.2 cm in diameter occupied the central third of the kidney.
  • Immunohistochemically, the tumor cells showed positive reactions with antibodies against HMB-45, melan A, CD-68, muscle-specific actin, and, rarely, smooth muscle actin.
  • As a sporadic renal tumor it followed a benign course in most of the reported cases.
  • [MeSH-minor] Actins / analysis. Antigens, CD / analysis. Antigens, Differentiation, Myelomonocytic / analysis. Antigens, Neoplasm. Biomarkers, Tumor / analysis. Diagnosis, Differential. Female. Giant Cells / pathology. Humans. MART-1 Antigen. Melanoma-Specific Antigens. Middle Aged. Neoplasm Proteins / analysis. Treatment Outcome

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  • (PMID = 15792132.001).
  • [ISSN] 0344-0338
  • [Journal-full-title] Pathology, research and practice
  • [ISO-abbreviation] Pathol. Res. Pract.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Germany
  • [Chemical-registry-number] 0 / Actins; 0 / Antigens, CD; 0 / Antigens, Differentiation, Myelomonocytic; 0 / Antigens, Neoplasm; 0 / Biomarkers, Tumor; 0 / CD68 antigen, human; 0 / MART-1 Antigen; 0 / MLANA protein, human; 0 / Melanoma-Specific Antigens; 0 / Neoplasm Proteins
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18. Zimmermann A, von der Brelie C, Berger B, Kappeler A, Candinas D: Primary perivascular epithelioid cell tumor of the liver not related to hepatic ligaments: hepatic PEComa as an emerging entity. Histol Histopathol; 2008 10;23(10):1185-93
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  • [Title] Primary perivascular epithelioid cell tumor of the liver not related to hepatic ligaments: hepatic PEComa as an emerging entity.
  • Primary perivascular epithelioid cell tumor (PEComa) of the liver is a very rare example of an emerging family of hepatic PEC tumors.
  • We report the case of a large but benign hepatic PEComa in a 53-year-old man without signs of tuberous sclerosis.
  • In contrast to recently described PEC-derived liver tumors in children and young adults, this neoplasm was not related to the hepatic ligaments but had developed deeply within the liver substance.
  • The neoplastic cells displayed the complete phenotype typical for PEComas, i.e. reactivity for several melanoma markers and for smooth muscle actin.
  • The unique relationship of myoid tumor cells to the adventitia of blood vessels prompted us, in comparison with published findings obtained with angiomyolipomas, to comment on the possible origin of the still enigmatic perivascular epithelioid cells.

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  • (PMID = 18712670.001).
  • [ISSN] 1699-5848
  • [Journal-full-title] Histology and histopathology
  • [ISO-abbreviation] Histol. Histopathol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Spain
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19. Pitukkijronnakorn S, Leelachaikul P, Chittacharoen A: Labial leiomyoma: a case report. J Med Assoc Thai; 2005 Jan;88(1):118-9
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  • Leiomyoma is normally a benign smooth muscle tumor and behaves as a hormone sensitive tumor Leiomyomas develop during the reproductive age and regress after menopause.

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  • (PMID = 15960230.001).
  • [ISSN] 0125-2208
  • [Journal-full-title] Journal of the Medical Association of Thailand = Chotmaihet thangphaet
  • [ISO-abbreviation] J Med Assoc Thai
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Thailand
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20. Hua W, Xu F, Mao Y, Zhang J, Wang Y, Mao R, Zhou L: Primary intracranial leiomyomas: Report of two cases and review of the literature. Clin Neurol Neurosurg; 2009 Dec;111(10):907-12
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  • A leiomyoma is a benign neoplasm composed of smooth muscle cells that commonly occurs in the genitourinary and gastrointestinal tracts.
  • Pathological analysis with immunohistochemistry revealed that tumors had characteristics of benign smooth muscles.

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  • (PMID = 19740596.001).
  • [ISSN] 1872-6968
  • [Journal-full-title] Clinical neurology and neurosurgery
  • [ISO-abbreviation] Clin Neurol Neurosurg
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Netherlands
  • [Chemical-registry-number] 0 / Biomarkers; 0 / Nerve Tissue Proteins
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21. Mochizuki K, Yamada T, Mori Y, Sawada A, Mori I, Ohnishi Y: Case of atypical fibroxanthoma in the palpebral conjunctiva. Jpn J Ophthalmol; 2008 Sep-Oct;52(5):404-6
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  • CASE: A 94-year-old woman had a hemorrhagic tumor in the right lower palpebral conjunctiva that was resected, and adjunctive cryotherapy was applied to the surgical bed.
  • OBSERVATIONS: The tumor was bleeding and appeared as a pale red, elastic but firm nodule approximately 15x16x8 mm in size.
  • The tumor stained positive for vimentin, CD68, and CD10, weakly for CD74 and CD99, and was negative for keratin (wide), KL-1, alpha-fetoprotein, myoglobin, S-100, alpha-smooth muscle actin, desmin, leukocyte common antigen, and glial fibrillary acidic protein immunohistochemically.
  • From these findings, we diagnosed the tumor as an atypical fibroxanthoma.
  • [MeSH-major] Conjunctival Neoplasms / pathology. Histiocytoma, Benign Fibrous / pathology
  • [MeSH-minor] Aged, 80 and over. Biomarkers, Tumor / analysis. Conjunctival Diseases. Cryosurgery. Female. Humans. Neoplasm Proteins / analysis. Xanthomatosis

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  • [Cites] J Cutan Pathol. 2007 May;34(5):415-9 [17448198.001]
  • [Cites] Australas J Dermatol. 2004 May;45(2):106-9 [15068457.001]
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  • (PMID = 18991043.001).
  • [ISSN] 0021-5155
  • [Journal-full-title] Japanese journal of ophthalmology
  • [ISO-abbreviation] Jpn. J. Ophthalmol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Japan
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 0 / Neoplasm Proteins
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22. Koletsa T, Karayannopoulou G, Dereklis D, Vasileiadis I, Papadimitriou CS, Hytiroglou P: Mesectodermal leiomyoma of the ciliary body: report of a case and review of the literature. Pathol Res Pract; 2009;205(2):125-30
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • Mesectodermal leiomyoma of the ciliary body is a rare benign tumor with double (muscular and neural) differentiation.
  • This neoplasm is considered to originate from the ciliary body smooth muscle, a neural crest derivative.
  • The tumor measured 1.2cm in greatest dimension, and consisted of spindle and ovoid cells with abundant fibrillary cytoplasmic processes.
  • Immunohistochemical stains revealed positivity for smooth muscle actin, caldesmon, neuron-specific enolase, and CD56 antigen.
  • A review of the 23 cases thus far reported in the literature shows a striking predilection for women, as well as significant difficulties in differentiating this tumor from malignant melanoma on clinical grounds.
  • [MeSH-minor] Adolescent. Adult. Biomarkers, Tumor / analysis. Child. Female. Humans. Immunohistochemistry. Male. Middle Aged

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  • (PMID = 18930601.001).
  • [ISSN] 0344-0338
  • [Journal-full-title] Pathology, research and practice
  • [ISO-abbreviation] Pathol. Res. Pract.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Germany
  • [Chemical-registry-number] 0 / Biomarkers, Tumor
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23. Thomas S, Revadi PS, Jeyachandran P, Muley PR: Painless angioleiomyoma: a case report with review of literature. Indian J Pathol Microbiol; 2006 Jul;49(3):440-1
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  • A 55 year old male, who presented with a painless swelling of six months duration on his thigh, was clinically diagnosed to have a benign soft tissue neoplasm.
  • Histological examination of the excision biopsy specimen revealed a benign tumour of the vascular smooth muscle, which was diagnosed as angioleiomyoma.

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  • (PMID = 17001916.001).
  • [ISSN] 0377-4929
  • [Journal-full-title] Indian journal of pathology & microbiology
  • [ISO-abbreviation] Indian J Pathol Microbiol
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] India
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24. Akbulut M, Soysal ME, Duzcan SE: Giant lipoleiomyoma of the uterine corpus. Arch Gynecol Obstet; 2008 Sep;278(3):291-3
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • OBJECTIVE: Lipoleiomyoma is a rare and easily recognized, benign uterine fatty tumor, composed of an admixture of mature adipocytes and smooth-muscle cells.
  • Also the peculiar features of this giant neoplasm, histogenesis, concomitant metabolic disorders and the diagnostic methods are discussed.

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  • (PMID = 18283478.001).
  • [ISSN] 1432-0711
  • [Journal-full-title] Archives of gynecology and obstetrics
  • [ISO-abbreviation] Arch. Gynecol. Obstet.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Germany
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25. Metta H, Corti M, Redini L, Dure R, Campitelli AM, Narbaitz M: Endobronchial leiomyoma: an unusual non-defining neoplasm in a patient with AIDS. Rev Inst Med Trop Sao Paulo; 2009 Jan-Feb;51(1):53-5
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  • [Title] Endobronchial leiomyoma: an unusual non-defining neoplasm in a patient with AIDS.
  • Smooth muscle neoplasms are more frequent in human immunodeficiency infected children than in HIV seropositive adults.
  • Endobronchial leiomyoma is a rare benign tumor in HIV infected adult patients.
  • Our report suggests that smooth muscle tumors as leiomyoma should be included in the differential diagnosis of endobronchial masses in AIDS patients.

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  • (PMID = 19229392.001).
  • [ISSN] 1678-9946
  • [Journal-full-title] Revista do Instituto de Medicina Tropical de São Paulo
  • [ISO-abbreviation] Rev. Inst. Med. Trop. Sao Paulo
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Brazil
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26. Gajanayake I, Priestnall SL, Benigni L, English K, Summers BA, Garden OA: Paraneoplastic hypercalcemia in a dog with benign renal angiomyxoma. J Vet Diagn Invest; 2010 Sep;22(5):775-80
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  • [Title] Paraneoplastic hypercalcemia in a dog with benign renal angiomyxoma.
  • Immunohistochemical examination with vimentin, von Willebrand Factor, and alpha-smooth muscle actin confirmed the mass to be a renal angiomyxoma.
  • The present report describes a previously unreported renal neoplasm causing paraneoplastic hypercalcemia and highlights the possibility of paraneoplastic hypercalcemia being caused by a benign neoplasm.

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  • (PMID = 20807942.001).
  • [ISSN] 1040-6387
  • [Journal-full-title] Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc
  • [ISO-abbreviation] J. Vet. Diagn. Invest.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
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27. Coco DP, Hirsch MS, Hornick JL: Smoothelin is a specific marker for smooth muscle neoplasms of the gastrointestinal tract. Am J Surg Pathol; 2009 Dec;33(12):1795-801
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Smoothelin is a specific marker for smooth muscle neoplasms of the gastrointestinal tract.
  • Smoothelin is a smooth muscle-specific cytoskeletal protein exclusively found in differentiated smooth muscle cells.
  • This contrasts with other smooth muscle proteins (eg, h-caldesmon, alpha-smooth muscle actin, desmin, smooth muscle myosin), which are expressed in proliferative (early) stages of smooth muscle development and occasionally in other cell types (striated muscle, myofibroblasts, myoepithelial cells, pericytes).
  • Smoothelin has been shown to be expressed predominantly in visceral smooth muscle and to a lesser extent in vascular smooth muscle.
  • The purpose of this study was to determine whether immunostaining for smoothelin could help distinguish smooth muscle neoplasms from their morphologic mimics, particularly KIT-negative gastrointestinal stromal tumors (GISTs), desmin-positive GISTs, and desmoid fibromatosis.
  • Cytoplasmic expression of smoothelin was present in all 24 (100%) benign smooth muscle tumors (mural leiomyomas and leiomyomas of the muscularis mucosae).
  • Nuclear expression of smoothelin was not detected in any of the other tumor types examined.
  • In summary, diffuse cytoplasmic staining for smoothelin is highly sensitive and specific for benign leiomyomas of the GI tract.
  • These findings suggest that the extent and pattern of smoothelin expression may help differentiate between benign and malignant mesenchymal tumors of the GI tract, and may be useful in distinguishing leiomyomas from KIT-negative and/or desmin-positive GISTs.
  • [MeSH-major] Biomarkers, Tumor / analysis. Cytoskeletal Proteins / analysis. Gastrointestinal Neoplasms / chemistry. Muscle Proteins / analysis. Smooth Muscle Tumor / chemistry
  • [MeSH-minor] Cell Differentiation. Cell Nucleus / chemistry. Cytoplasm / chemistry. Desmin / analysis. Diagnosis, Differential. Humans. Immunohistochemistry. Neoplasm Staging. Predictive Value of Tests. Proto-Oncogene Proteins c-kit / analysis. Sensitivity and Specificity

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  • (PMID = 19950405.001).
  • [ISSN] 1532-0979
  • [Journal-full-title] The American journal of surgical pathology
  • [ISO-abbreviation] Am. J. Surg. Pathol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 0 / Cytoskeletal Proteins; 0 / Desmin; 0 / Muscle Proteins; 0 / SMTN protein, human; EC 2.7.10.1 / Proto-Oncogene Proteins c-kit
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28. Behzatoğlu K, Durak H, Canberk S, Aydin O, Huq GE, Oznur M, Ozyalvaçli G, Yildiz P: Giant cell tumor-like lesion of the urinary bladder: a report of two cases and literature review; giant cell tumor or undifferentiated carcinoma? Diagn Pathol; 2009;4:48
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  • [Title] Giant cell tumor-like lesion of the urinary bladder: a report of two cases and literature review; giant cell tumor or undifferentiated carcinoma?
  • Giant cell tumor, excluding its prototype in bone, is usually a benign but local aggressive neoplasm originating from tendon sheath or soft tissue.
  • Giant cell tumors in visceral organs usually accompany epithelial tumors and the clinical behavior of giant cell tumor in urinary bladder is similar to its bone counterpart.
  • Here, we report two cases of giant cell tumor located in urinary bladder in comparison with nine reported cases in the English literature.
  • One of the two cases we present had no concurrent urothelial tumor at the time of diagnosis but had a history of a low grade noninvasive urothelial carcinoma with three recurrences.
  • The histology of these two cases was similar to the giant cell tumor of bone and composed of oval to spindle mononuclear cells with evenly spaced osteoclast-like giant cells.
  • Immunohistochemical expression of vimentin, CD68, LCA, and smooth muscle actin in mononuclear cells supported a mesenchymal origin with histiocytic lineage.
  • The histologic and immunohistochemical properties in our cases as well as their clinical courses were consistent with a giant cell tumor.
  • Consequently, tumors in urinary bladder showing features of giant cell tumor of bone may also be considered and termed "giant cell tumor".

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  • (PMID = 20043822.001).
  • [ISSN] 1746-1596
  • [Journal-full-title] Diagnostic pathology
  • [ISO-abbreviation] Diagn Pathol
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] England
  • [Other-IDs] NLM/ PMC2811699
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29. Furuya Y, Uchida K, Tateyama S: A case of glomus tumor in a dog. J Vet Med Sci; 2006 Dec;68(12):1339-41
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  • [Title] A case of glomus tumor in a dog.
  • The neoplastic cells were positive for alpha-smooth muscle actin and vimentin, and were negative for cytokeratin (AE1/AE3), desmin, factor-VIII related antigen, S-100 protein, and neuron specific enolase.
  • On the basis of these findings, this tumor was diagnosed as glomus tumor.
  • Since the present neoplasm had neither recurrence nor distal metastasis during the 12 month after surgical resection, the biological natures of the present neoplasm are supposed to be benign.

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  • (PMID = 17213705.001).
  • [ISSN] 0916-7250
  • [Journal-full-title] The Journal of veterinary medical science
  • [ISO-abbreviation] J. Vet. Med. Sci.
  • [Language] ENG
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Japan
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30. Xu AM, Zhang SH, Zheng JM, Zheng WQ, Wu MC: Pathological and molecular analysis of sporadic hepatic angiomyolipoma. Hum Pathol; 2006 Jun;37(6):735-41
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • We sought to better define the morphological variations and immunohistochemical and molecular features of this unusual tumor.
  • Histologically, HAML is composed of a heterogeneous mixture of blood vessels, smooth muscle, and adipose cells.
  • Most of the tumor cells were positive for HMB-45 (100%) and SMA (100%).
  • Hepatic AML is a benign neoplasm with varied morphology and monoclonal growth.
  • Neither LOH nor MSI appears to play an important role in the pathogenesis of this tumor.
  • [MeSH-major] Angiomyolipoma / genetics. Angiomyolipoma / pathology. Biomarkers, Tumor / analysis. Liver Neoplasms / genetics. Liver Neoplasms / pathology
  • [MeSH-minor] Adult. Aged. Antigens, Neoplasm / analysis. Chromosomes, Human, X. Clone Cells. DNA, Neoplasm / analysis. Female. Hepatectomy. Humans. Immunohistochemistry. Lasers. Male. Melanoma-Specific Antigens. Microdissection. Middle Aged. Muscle, Smooth / cytology. Muscle, Smooth / metabolism. Neoplasm Proteins / analysis. Prospective Studies. Receptors, Androgen / metabolism. Sex Chromosome Aberrations. Tumor Burden

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  • (PMID = 16733215.001).
  • [ISSN] 0046-8177
  • [Journal-full-title] Human pathology
  • [ISO-abbreviation] Hum. Pathol.
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Antigens, Neoplasm; 0 / Biomarkers, Tumor; 0 / DNA, Neoplasm; 0 / Melanoma-Specific Antigens; 0 / Neoplasm Proteins; 0 / Receptors, Androgen
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31. Chaudhry IH, Calonje E: Dermal non-neural granular cell tumour (so-called primitive polypoid granular cell tumour): a distinctive entity further delineated in a clinicopathological study of 11 cases. Histopathology; 2005 Aug;47(2):179-85
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  • AIMS: Cutaneous and soft tissue granular cell tumour is a well-characterized benign neoplasm of neural origin.
  • There was negative staining for S100 protein, smooth muscle actin, Melan-A, CD34, desmin and cytokeratin.
  • [MeSH-major] Granular Cell Tumor / pathology. Skin Neoplasms / pathology
  • [MeSH-minor] Adolescent. Adult. Antigens, CD / analysis. Antigens, Differentiation, Myelomonocytic / analysis. Biomarkers, Tumor / analysis. Child. Factor XIIIa / analysis. Female. Humans. Immunohistochemistry. Lysosomes / immunology. Male. Middle Aged

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  • (PMID = 16045779.001).
  • [ISSN] 0309-0167
  • [Journal-full-title] Histopathology
  • [ISO-abbreviation] Histopathology
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Antigens, CD; 0 / Antigens, Differentiation, Myelomonocytic; 0 / Biomarkers, Tumor; 0 / CD68 antigen, human; EC 2.3.2.13 / Factor XIIIa
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32. Nucci MR, Drapkin R, Dal Cin P, Fletcher CD, Fletcher JA: Distinctive cytogenetic profile in benign metastasizing leiomyoma: pathogenetic implications. Am J Surg Pathol; 2007 May;31(5):737-43
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Distinctive cytogenetic profile in benign metastasizing leiomyoma: pathogenetic implications.
  • "Benign metastasizing leiomyoma" is the terminology used to describe a controversial entity characterized by a proliferation of bland-appearing smooth muscle in lung or abdominopelvic lymph nodes.
  • In this report, we describe 5 cases of pulmonary-based smooth muscle tumors that are clinically and histologically consistent with this entity, and in which we identified consistent chromosomal aberrations (19q and 22q terminal deletion in all cases).
  • This cytogenetic profile is found in approximately 3% of uterine leiomyoma, but has not been described in other types of benign or malignant neoplasia.
  • These findings suggest that the nodular pulmonary smooth muscle proliferations termed "benign metastasizing leiomyoma," are a genetically distinct entity, which likely originate from a biologically distinctive subset of uterine leiomyoma.
  • [MeSH-minor] Actins / analysis. Biomarkers, Tumor. Chromosome Deletion. Chromosomes, Human, Pair 19. Chromosomes, Human, Pair 22. Desmin / analysis. Female. Humans. Karyotyping. Middle Aged. Neoplasm Metastasis

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  • (PMID = 17460458.001).
  • [ISSN] 0147-5185
  • [Journal-full-title] The American journal of surgical pathology
  • [ISO-abbreviation] Am. J. Surg. Pathol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Actins; 0 / Biomarkers, Tumor; 0 / Desmin
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33. De Padua M, Gupta N, Broor SL, Govil D: Duodenal angiomyolipoma: a case report. Indian J Pathol Microbiol; 2007 Jul;50(3):568-9
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  • Angiomyolipoma is a benign neoplasm, the most common site being the kidney.
  • On immunohistochemistry, smooth muscle component was positive for Smooth Muscle Actin.

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  • [CommentIn] Indian J Pathol Microbiol. 2010 Oct-Dec;53(4):859 [21045449.001]
  • (PMID = 17883138.001).
  • [ISSN] 0377-4929
  • [Journal-full-title] Indian journal of pathology & microbiology
  • [ISO-abbreviation] Indian J Pathol Microbiol
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] India
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34. Gupta A, Chandra N, Sharma A, Husain N, Kureel SN: Renal leiomyoma in a child: a rare renal tumor. J Pediatr Surg; 2010 Sep;45(9):1900-3
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Renal leiomyoma in a child: a rare renal tumor.
  • Renal leiomyoma is a rare benign smooth muscle tumor of the kidney.
  • We report a case of right renal leiomyoma in a 6-year-old boy which was suspected of being a Wilms tumor.
  • Contrast-enhanced computed tomography could not differentiate leiomyoma in the kidney, and the mass was diagnosed as a Wilms tumor.
  • There may be a role for nephron sparing surgery, provided the tumor is small, and one has a strong suspicion for the lesion being benign.

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  • [Copyright] Copyright © 2010 Elsevier Inc. All rights reserved.
  • (PMID = 20850642.001).
  • [ISSN] 1531-5037
  • [Journal-full-title] Journal of pediatric surgery
  • [ISO-abbreviation] J. Pediatr. Surg.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
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35. Kamboj S, Sharma RK, Kumar A, Chaudhary SS, Jain VK: Crusted Piloleiomyoma with mental retardation: a rare association. Indian J Dermatol; 2009;54(1):75-6
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  • Piloleiomyoma is an uncommon benign smooth muscle neoplasm arising from arrector pili muscle.
  • It is clinically defined by the presence of solitary or multiple reddish brown, dome-shaped, smooth papules or nodules, ranging in size from a few millimeters to a centimeter.
  • In this case report, a mentally retarded patient with Piloleiomyoma is described, who, besides the characteristic smooth and dome-shaped lesions on the anterolateral aspect of the dorsum of the right foot, had developed crusting on one of the largest lesions.

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  • [Cites] J Dermatol. 1996 Jan;23(1):56-7 [8720260.001]
  • [Cites] Am J Hum Genet. 2001 May;68(5):1264-9 [11283798.001]
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  • (PMID = 20049278.001).
  • [ISSN] 1998-3611
  • [Journal-full-title] Indian journal of dermatology
  • [ISO-abbreviation] Indian J Dermatol
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] India
  • [Other-IDs] NLM/ PMC2800880
  • [Keywords] NOTNLM ; Crusting / mental retardation / piloleiomyoma
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36. Schöniger S, Tivers MS, Baines SJ, Summers BA: Arteriovenous haemangioma in two dogs and a cat. J Comp Pathol; 2008 Aug-Oct;139(2-3):130-6
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • Haemangiomas are benign vascular tumours and several types can be distinguished based on microscopical features.
  • Surgically excised masses comprised non-encapsulated proliferations of variably sized arterial- and venous-like vessels, accompanied by clusters of capillaries and immature vascular structures in the feline cutaneous tumour and the canine lingual neoplasm.
  • All vasoformative elements had von Willebrand factor-positive endothelia enclosed by a smooth muscle actin-positive tunica media or by pericytes.

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  • (PMID = 18620702.001).
  • [ISSN] 0021-9975
  • [Journal-full-title] Journal of comparative pathology
  • [ISO-abbreviation] J. Comp. Pathol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] England
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37. Knight CS, Cerfolio RJ, Winokur TS: Angiomyolipoma of the anterior mediastinum. Ann Diagn Pathol; 2008 Aug;12(4):293-5
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  • Angiomyolipoma is a benign tumor composed of varying proportions of smooth muscle cells, blood vessels, and adipose tissue that most commonly occurs in the kidney.
  • Immunohistochemical stains revealed positivity for smooth muscle actin and HMB-45, revealing the expression of smooth muscle and melanocytic markers characteristic of angiomyolipoma and other lesions in the PEComa family.
  • [MeSH-minor] Actins / metabolism. Antigens, Neoplasm / metabolism. Diagnosis, Differential. Female. Humans. Immunohistochemistry. Melanoma-Specific Antigens. Middle Aged. Muscle, Smooth / pathology. Neoplasm Proteins / metabolism. Thymoma / pathology. Thymus Neoplasms / pathology

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  • (PMID = 18620999.001).
  • [ISSN] 1532-8198
  • [Journal-full-title] Annals of diagnostic pathology
  • [ISO-abbreviation] Ann Diagn Pathol
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Actins; 0 / Antigens, Neoplasm; 0 / Melanoma-Specific Antigens; 0 / Neoplasm Proteins
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38. Murtoniemi K, Pirinen E, Kähkönen M, Heiskanen N, Heinonen S: Smooth muscle tumor of the placenta - an entrapped maternal leiomyoma: a case report. J Med Case Rep; 2009;3:7302
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Smooth muscle tumor of the placenta - an entrapped maternal leiomyoma: a case report.
  • Tumors arising from the placental tissue include two distinct histological types: the benign vascular tumor, chorangioma, and very rarely, choriocarcinoma.
  • Benign leiomyomas, in contrast, are very common tumors of the uterine wall and occur in 0.1% to 12.5% of all pregnant women.
  • This case is possibly the first report on this kind of a placental tumor which has been examined using both immunohistochemistry and chromosome analysis.
  • Histologically, the tumor was a benign leiomyoma and this finding was supported by immunohistochemistry.
  • Chromosomes of the neoplasm were studied by the fluorescence in situ hybridization technique and the tumor was found to carry XX chromosomes.
  • CONCLUSION: A rare benign smooth muscle neoplasm involving the placental parenchyma is presented.
  • The tumor was a uterine leiomyoma of maternal origin, which had become entrapped by the placenta.

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  • [Cites] Indian J Pathol Microbiol. 2005 Apr;48(2):223-4 [16758675.001]
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  • (PMID = 19830174.001).
  • [ISSN] 1752-1947
  • [Journal-full-title] Journal of medical case reports
  • [ISO-abbreviation] J Med Case Rep
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] England
  • [Other-IDs] NLM/ PMC2726536
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39. Kratz KG, Santillan A, Gu M, Bristow RE: Radical surgical cytoreduction of progressive leiomyomatosis peritonealis disseminata: a case report. J Reprod Med; 2009 Jul;54(7):447-50
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • BACKGROUND: Leiomyomatosis peritonealis disseminata (LPD) is an uncommon, benign smooth muscle condition of the peritoneal cavity that appears clinically as a metastatic malignant neoplasm.
  • Tumor response to megestrol acetate in vitro was evaluated and noted to be heterogeneous; therefore it was not given as adjuvant therapy.

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  • (PMID = 19691262.001).
  • [ISSN] 0024-7758
  • [Journal-full-title] The Journal of reproductive medicine
  • [ISO-abbreviation] J Reprod Med
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] C2QI4IOI2G / Medroxyprogesterone Acetate
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40. Ptacek T, Song C, Walker CL, Sell SM: Physical mapping of distinct 7q22 deletions in uterine leiomyoma and analysis of a recently annotated 7q22 candidate gene. Cancer Genet Cytogenet; 2007 Apr 15;174(2):116-20
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • Uterine leiomyoma (UL) is a benign, smooth muscle tumor of the uterus affecting a significant proportion of women of reproductive age.

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  • (PMID = 17452252.001).
  • [ISSN] 0165-4608
  • [Journal-full-title] Cancer genetics and cytogenetics
  • [ISO-abbreviation] Cancer Genet. Cytogenet.
  • [Language] eng
  • [Grant] United States / NCI NIH HHS / CA / 5R25CA076023-07; United States / NIDDK NIH HHS / DK / P30DK056336
  • [Publication-type] Journal Article; Research Support, N.I.H., Extramural
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Myelin Proteins; 0 / PMP22 protein, human
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41. Sicaja M, Namiq A, Forster J, Damjanov I: Myxoid leiomyosarcoma of the liver. Pathol Res Pract; 2006;202(1):43-6
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • The tumor was resected from a 64-year-old man.
  • The tumor was composed of deceptively benign-looking smooth muscle cells with clear cytoplasm suspended in a myxoid stroma with foci of hemorrhage.
  • Immunohistochemistry and electron microscopy confirmed that this was a smooth muscle cell neoplasm.
  • The abundance of glycogen and ultrastructural signs of smooth muscle differentiation were considered consistent with an immature smooth muscle cell phenotype consistent with the diagnosis of myxoid leiomyosarcoma.
  • [MeSH-minor] Biomarkers, Tumor. Humans. Male. Middle Aged

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  • (PMID = 16316722.001).
  • [ISSN] 0344-0338
  • [Journal-full-title] Pathology, research and practice
  • [ISO-abbreviation] Pathol. Res. Pract.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Germany
  • [Chemical-registry-number] 0 / Biomarkers, Tumor
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42. Bilyeu SP, Bilyeu JD, Parthasarathy R: Intravenous lipoleiomyomatosis. Clin Imaging; 2006 Sep-Oct;30(5):361-4
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • Intravenous lipoleiomyomatosis (LPL) is a rare benign tumor composed of fat and smooth muscle.
  • [MeSH-minor] Female. Heart Atria / pathology. Heart Atria / surgery. Humans. Magnetic Resonance Imaging. Middle Aged. Neoplasm Invasiveness. Pulmonary Artery / pathology. Pulmonary Artery / surgery. Tomography, X-Ray Computed

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  • (PMID = 16919562.001).
  • [ISSN] 0899-7071
  • [Journal-full-title] Clinical imaging
  • [ISO-abbreviation] Clin Imaging
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
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43. González Sánchez MA, Colorado Bonnin M, Berini Aytés L, Gay Escoda C: Leiomyoma of the hard palate: a case report. Med Oral Patol Oral Cir Bucal; 2007 May;12(3):E221-4
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • Leiomyoma is a benign smooth muscle tumor that is very rarely located in the oral cavity.
  • It is accepted that the smooth muscle giving rise to this tumor corresponds to the tunica media of the arteries.
  • The tumor can develop at any age, with no clear gender predilection, and typically manifests as a slow-growing, asymptomatic lesion.
  • We present the case of a 57-year-old male with a tumor located for the previous four months in the region of the hard palate, adjacent to the left upper premolars.

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  • (PMID = 17468719.001).
  • [ISSN] 1698-6946
  • [Journal-full-title] Medicina oral, patología oral y cirugía bucal
  • [ISO-abbreviation] Med Oral Patol Oral Cir Bucal
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Spain
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44. Nahal A, Meterissian S: Lipoleiomyosarcoma of the rectosigmoid colon: a unique site for a rare variant of liposarcoma. Am J Clin Oncol; 2009 Aug;32(4):353-5
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • OBJECTIVES: Soft tissue tumors with dual adipocytic and smooth muscle differentiation are generally rare with most being benign.
  • Sarcomas with dual fatty and smooth muscle differentiation are even rarer.
  • [MeSH-major] Leiomyosarcoma / pathology. Liposarcoma / pathology. Neoplasm Invasiveness / pathology. Rectal Neoplasms / pathology. Sigmoid Neoplasms / pathology
  • [MeSH-minor] Biopsy, Needle. Colectomy / methods. Diagnosis, Differential. Female. Follow-Up Studies. Humans. Immunohistochemistry. Laparotomy / methods. Middle Aged. Neoplasm Staging. Pelvic Pain / diagnosis. Pelvic Pain / etiology. Radiotherapy, Adjuvant. Tomography, X-Ray Computed. Treatment Outcome

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  • (PMID = 19363435.001).
  • [ISSN] 1537-453X
  • [Journal-full-title] American journal of clinical oncology
  • [ISO-abbreviation] Am. J. Clin. Oncol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article; Review
  • [Publication-country] United States
  • [Number-of-references] 13
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45. Lin YC, Wei LH, Shun CT, Cheng AL, Hsu CH: Disseminated peritoneal leiomyomatosis responds to systemic chemotherapy. Oncology; 2009;76(1):55-8
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  • Leiomyomatosis peritonealis disseminata (LPD) is a rare disease entity characterized by multiple peritoneal tumors composed of benign but proliferative smooth muscle cells.
  • Objective tumor response was achieved and sustained for 1 year.
  • [MeSH-minor] Female. Humans. Middle Aged. Mitosis. Neoplasm Recurrence, Local. Uterine Neoplasms / surgery

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  • (PMID = 19039249.001).
  • [ISSN] 1423-0232
  • [Journal-full-title] Oncology
  • [ISO-abbreviation] Oncology
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Switzerland
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46. Kim HJ, Kim CH, Choi YJ, Ayala AG, Amirikachi M, Ro JY: Juxtaglomerular cell tumor of kidney with CD34 and CD117 immunoreactivity: report of 5 cases. Arch Pathol Lab Med; 2006 May;130(5):707-11
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  • [Title] Juxtaglomerular cell tumor of kidney with CD34 and CD117 immunoreactivity: report of 5 cases.
  • CONTEXT: Juxtaglomerular cell tumor is a rare renal neoplasm.
  • Renin immunohistochemistry and electron microscopic documentation of rhomboid crystals are the primary methods of diagnosing this benign tumor.
  • OBJECTIVES: In this retrospective study, we evaluated the morphologic, immunohistochemical, and ultrastructural features of 5 cases of juxtaglomerular cell tumor to determine the effectiveness of CD34 and CD117 immunohistochemistry for the diagnosis of this tumor.
  • On light microscopic examination, we found solid sheets and nests of tumor cells with oval-to-round nuclei and eosinophilic cytoplasm.
  • Immunohistochemistry results were as follows: vimentin (positive), renin (weakly positive), smooth muscle actin (focal immunoreactivity), and cytokeratin (negative).
  • CONCLUSIONS: Our findings indicate that immunohistochemistry for CD34 and CD117 are effective at diagnosing juxtaglomerular cell tumor.
  • Juxtaglomerular cell tumor should be considered in the diagnosis of any renal tumors with epithelioid cells and negative initial cytokeratin immunohistochemistry.
  • [MeSH-minor] Adolescent. Adult. Biomarkers, Tumor / analysis. Female. Humans. Hypertension / diagnosis. Male. Middle Aged. Tomography, X-Ray Computed. Treatment Outcome

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  • (PMID = 16683889.001).
  • [ISSN] 1543-2165
  • [Journal-full-title] Archives of pathology & laboratory medicine
  • [ISO-abbreviation] Arch. Pathol. Lab. Med.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Antigens, CD34; 0 / Biomarkers, Tumor; EC 2.7.10.1 / Proto-Oncogene Proteins c-kit
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47. Nguyen TT, Gorman B, Shields D, Goodman Z: Malignant hepatic angiomyolipoma: report of a case and review of literature. Am J Surg Pathol; 2008 May;32(5):793-8
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  • Hepatic angiomyolipoma, a constituent of the group of tumors showing differentiation resembling perivascular epithelioid cells, is primarily appreciated in its benign form.
  • These tumors also possess similar immunohistochemical profiles, including positivity for melanocytic (HMB-45) and smooth muscle (smooth muscle actin) markers.
  • We will discuss the features that aid in distinguishing between benign and malignant HAML, and their similarities.
  • In summary, the common features of both benign and malignant HAML include the following: the 3 basic histologic components of AML, expression of melanocytic and smooth muscle markers, invasion into adjacent normal parenchyma, and cytologic atypia.
  • [MeSH-minor] Adipocytes / chemistry. Adipocytes / pathology. Adult. Antigens, Neoplasm / analysis. Biomarkers, Tumor / analysis. Fatal Outcome. Female. Hepatectomy. Humans. Melanoma-Specific Antigens. Neoplasm Metastasis. Neoplasm Proteins / analysis. Neoplasm Recurrence, Local

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  • (PMID = 18391749.001).
  • [ISSN] 1532-0979
  • [Journal-full-title] The American journal of surgical pathology
  • [ISO-abbreviation] Am. J. Surg. Pathol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Antigens, Neoplasm; 0 / Biomarkers, Tumor; 0 / Melanoma-Specific Antigens; 0 / Neoplasm Proteins
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48. Holland KE, Galbraith SS: Generalized congenital smooth muscle hamartoma presenting with hypertrichosis, excess skin folds, and follicular dimpling. Pediatr Dermatol; 2008 Mar-Apr;25(2):236-9
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  • [Title] Generalized congenital smooth muscle hamartoma presenting with hypertrichosis, excess skin folds, and follicular dimpling.
  • We describe an interesting patient with a diffuse smooth muscle hamartoma who presented with hypertrichosis, increased skin folds, and follicular dimpling.
  • While smooth muscle hamartoma classically presents as a small hairy, skin-colored to hyperpigmented patch or plaque, rare presentations with diffuse involvement or follicular papules have been described.
  • We present our patient and review the literature to highlight the diverse and under recognized manifestations of this benign neoplasm.
  • [MeSH-major] Hamartoma / congenital. Hamartoma / diagnosis. Muscle, Smooth / pathology. Skin Neoplasms / congenital. Skin Neoplasms / diagnosis

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  • (PMID = 18429788.001).
  • [ISSN] 1525-1470
  • [Journal-full-title] Pediatric dermatology
  • [ISO-abbreviation] Pediatr Dermatol
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
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49. Koyuncu BO, Zeytinoğlu M, Unal T, Zeytinoğlu B: Myofibroma of the gingiva: report of a case. J Clin Pediatr Dent; 2010;34(3):253-7
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  • Myofibroma is a benign mesenchymal neoplasm composed of myofibroblasts which has been described with different synonyms since the first report in 1951.
  • Awareness and recognition of this benign tumor is important to establish the correct diagnosis and avoid morbidity of unnecessary aggressive therapy.
  • The tumor showed rapid increase in size and clinical features suggestive of malignancy.
  • However on histopathologic evaluation it was diagnosed as a benign neoplasm, and this diagnosis was supported by immunohistochemical markers.
  • The spindle cells were immunopositive for smooth muscle actin, and vimentin but were negative for desmin and S-100 protein.

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  • (PMID = 20578664.001).
  • [ISSN] 1053-4628
  • [Journal-full-title] The Journal of clinical pediatric dentistry
  • [ISO-abbreviation] J Clin Pediatr Dent
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Actins; 0 / Desmin; 0 / S100 Proteins; 0 / Vimentin
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50. Suh I, Shibru D, Eisenhofer G, Pacak K, Duh QY, Clark OH, Kebebew E: Candidate genes associated with malignant pheochromocytomas by genome-wide expression profiling. Ann Surg; 2009 Dec;250(6):983-90
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  • OBJECTIVE: To improve our understanding of the molecular mechanisms involved in malignant pheochromocytoma by examining differences in the gene expression profile between benign and malignant tumors.
  • There are also no reliable and uniformly accepted histopathologic criteria to distinguish benign from malignant pheochromocytoma.
  • METHODS: We performed genome-wide expression profiling of 58 pheochromocytomas (29 benign and sporadic, 16 benign and hereditary, 13 malignant) with technical and biologic replication.
  • Supervised cluster analysis showed almost completely separate clustering between benign and malignant tumors.
  • The differentially expressed genes with known function belonged to 8 biologic process categories; signal transduction, transcription, protein transport, protein synthesis, smooth muscle contraction, ion transport, chemotaxis, and electron transport.
  • Ten differentially expressed genes had high diagnostic accuracy, and 5 of these genes (CFC1, FAM62B, HOMER1, LRRN3, TBX3, ADAMTS) in combination had an area under the receiver operating characteristic (ROC) curve of 0.96 for distinguishing benign versus malignant tumors.
  • CONCLUSIONS: Differentially expressed genes between benign and malignant pheochromocytomas distinguish between these tumors with high diagnostic accuracy.
  • [MeSH-major] Adrenal Gland Neoplasms / genetics. Gene Expression Regulation, Neoplastic. Genes, Neoplasm / genetics. Genetic Association Studies / methods. Pheochromocytoma / genetics. RNA, Neoplasm / genetics

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  • (PMID = 19661783.001).
  • [ISSN] 1528-1140
  • [Journal-full-title] Annals of surgery
  • [ISO-abbreviation] Ann. Surg.
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / RNA, Neoplasm
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51. Holten-Andersen MN, Hansen U, Brünner N, Nielsen HJ, Illemann M, Nielsen BS: Localization of tissue inhibitor of metalloproteinases 1 (TIMP-1) in human colorectal adenoma and adenocarcinoma. Int J Cancer; 2005 Jan 10;113(2):198-206
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  • To clarify the role of TIMP-1 in colorectal tumorigenesis, the expression pattern of TIMP-1 in benign and malignant colorectal tumors was studied.
  • No TIMP-1 mRNA was seen in any of the cases in benign or malignant epithelial cells, in vascular cells or smooth muscle cells.
  • Combining TIMP-1 in situ hybridization with immunohistochemical staining for alpha-smooth muscle actin or CD68 showed TIMP-1 mRNA in myofibroblasts but not in macrophages.
  • In conclusion, TIMP-1 expression is a rare event in benign human colon tissue but is highly expressed by myofibroblasts in association with invading colon cancer cells.
  • [MeSH-minor] Case-Control Studies. Cell Transformation, Neoplastic. Diagnosis, Differential. Fibroblasts / physiology. Humans. Immunohistochemistry. In Situ Hybridization, Fluorescence. Neoplasm Invasiveness. RNA, Messenger / analysis. RNA, Messenger / biosynthesis

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  • (PMID = 15386409.001).
  • [ISSN] 0020-7136
  • [Journal-full-title] International journal of cancer
  • [ISO-abbreviation] Int. J. Cancer
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / RNA, Messenger; 0 / Tissue Inhibitor of Metalloproteinase-1
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52. Angiero F: Ectomesenchymal chondromyxoid tumour of the tongue. A review of histological and immunohistochemical features. Anticancer Res; 2010 Nov;30(11):4685-9
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  • BACKGROUND: Ectomesenchymal chondromyxoid tumour (ECT) is a rare, benign neoplasm of uncertain histogenesis, which appears to exclusively involve the oral cavity, particularly the tongue.
  • Immunohistochemistry revealed positivity of the neoplastic cells for antibodies directed against S-100, glial fibrillary acidic protein and vimentin, plus negativity for CD-57(leu-7), epithelial membrane antigen, smooth muscle actin, desmin and cytokeratin AE1-AE3.

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  • (PMID = 21115924.001).
  • [ISSN] 1791-7530
  • [Journal-full-title] Anticancer research
  • [ISO-abbreviation] Anticancer Res.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Greece
  • [Chemical-registry-number] 0 / Desmin; 0 / Glial Fibrillary Acidic Protein; 0 / S100 Proteins; 0 / Vimentin
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53. Huang KH, Liu JH, Wang LY, Wang LY, Li CQ, Zhu ZH, Li HG: [Endoscopic, clinicopathologic and immunohistochemical features of gastric stromal tumor]. Ai Zheng; 2007 Nov;26(11):1252-6
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  • [Title] [Endoscopic, clinicopathologic and immunohistochemical features of gastric stromal tumor].
  • BACKGROUND & OBJECTIVE: For gastric stromal tumor (GST), the low incidence and high diversity in endoscopic and pathologic manifestations lead to misdiagnosis.
  • The expression of CD117, CD34, smooth muscle actin (SMA), Desmin and S-100 were detected by immunohistochemistry.
  • RESULTS: Of the 42 cases of GST, 21 (50.0%) were at the fundus, 14 (33.3%) at the body, and 7 (16.7%) at the antrum; 17 (40.5%) were benign, 14 (33.3%) borderline, 11 (26.2%) malignant.
  • [MeSH-minor] Adult. Aged. Aged, 80 and over. Female. Follow-Up Studies. Humans. Immunohistochemistry. Liver Neoplasms / secondary. Male. Middle Aged. Neoplasm Recurrence, Local. Retrospective Studies. Survival Rate

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  • (PMID = 17991328.001).
  • [Journal-full-title] Ai zheng = Aizheng = Chinese journal of cancer
  • [ISO-abbreviation] Ai Zheng
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] China
  • [Chemical-registry-number] 0 / Antigens, CD34; EC 2.7.10.1 / Proto-Oncogene Proteins c-kit
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54. Bodner-Adler B, Bartl M, Wagner G: Intravenous leiomyomatosis of the uterus with pulmonary metastases or a case with benign metastasizing leiomyoma? Anticancer Res; 2009 Feb;29(2):495-6
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  • [Title] Intravenous leiomyomatosis of the uterus with pulmonary metastases or a case with benign metastasizing leiomyoma?
  • BACKGROUND: Intravenous leiomyomatosis (IVL) is defined as an intraluminal growth of benign smooth muscle cells in either venous or lymphatic vessels outside the confines or even in the absence of leiomyomas.
  • Benign metastasizing uterine leiomyoma is defined as a histologically benign uterine smooth muscle tumor that acts in a somewhat malignant fashion and produces benign metastases.
  • CONCLUSION: Though intravenous leiomyomatosis imitates a malignant neoplasm concerning the pattern of growth and extension, and benign metastasizing leiomyoma produces benign metastases, they must be differentiated histologically from malignant tumors to prevent overtreatment.


55. Gupta R, Singh S, Khurana N: Leiomyoma of the prostate--a rare mesenchymal tumor: a case report. Indian J Pathol Microbiol; 2007 Apr;50(2):403-5
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  • [Title] Leiomyoma of the prostate--a rare mesenchymal tumor: a case report.
  • Prostatic enlargement due to benign adenomatous hyperplasia is very common in elderly males.
  • However, benign mesenchymal tumors, especially true leiomyoma, are rare in prostate.
  • True prostatic leiomyoma has been defined by Kaufman and Berneike as a smooth muscle tumor within the prostate or juxta-prostatic in position, devoid of glandular elements.
  • A suprapubic prostatectomy was performed, and histopathological examination revealed a benign smooth muscle tumor (confirmed by immunohistochemistry), in absence of glandular hyperplasia.
  • True leiomyoma is a rare tumor in prostate, which can be diagnosed only on histopathological examination.

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  • (PMID = 17883092.001).
  • [ISSN] 0377-4929
  • [Journal-full-title] Indian journal of pathology & microbiology
  • [ISO-abbreviation] Indian J Pathol Microbiol
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] India
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56. Esmaeilzadeh M, Tavakolli A, Safaei A: Recurrent intracardiac leiomyomatosis. Can J Cardiol; 2007 Nov;23(13):1085-6
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  • An intravenous leiomyoma, a histologically benign smooth muscle tumour, arises from either a uterine myoma or the walls of a uterine vessel, with extension into veins.
  • [MeSH-major] Heart Neoplasms / secondary. Leiomyomatosis / diagnostic imaging. Smooth Muscle Tumor / diagnostic imaging. Uterine Neoplasms / diagnostic imaging
  • [MeSH-minor] Female. Humans. Middle Aged. Neoplasm Recurrence, Local. Ultrasonography

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  • [Cites] Am J Med. 1980 Sep;69(3):471-5 [7416191.001]
  • [Cites] N Engl J Med. 1980 Oct 30;303(18):1043-4 [7421892.001]
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  • (PMID = 17985013.001).
  • [ISSN] 0828-282X
  • [Journal-full-title] The Canadian journal of cardiology
  • [ISO-abbreviation] Can J Cardiol
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] England
  • [Other-IDs] NLM/ PMC2651934
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57. Esposito NN, Hunt JL, Bakker A, Jones MW: Analysis of allelic loss as an adjuvant tool in evaluation of malignancy in uterine smooth muscle tumors. Am J Surg Pathol; 2006 Jan;30(1):97-103
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  • [Title] Analysis of allelic loss as an adjuvant tool in evaluation of malignancy in uterine smooth muscle tumors.
  • Uterine smooth muscle tumors of uncertain malignant potential (STUMPs) are difficult both from the diagnostic and patient management standpoint because they cannot be classified as benign or malignant by conventional histologic criteria.
  • This study's aim was to determine the diagnostic utility of allelic imbalance (AI) analysis in uterine smooth muscle tumors.
  • Using microdissection and genotyping, we tested 5 leiomyomas, 6 STUMPs, and 10 leiomyosarcomas with follow-up for AI across a panel of seven tumor suppressor genes (p16, p21, p53, VHL, XRCC3, RB, and NM-23).
  • Loss of NM-23, a reported tumor metastasis suppressor gene, was found only in leiomyosarcomas (5 of 9, or 56%), and 4 of 5 (80%) of these were the only cases that demonstrated distant metastases (P = 0.04).
  • In conclusion, leiomyomas and STUMPs displayed similar mean FALs and all were clinically benign, whereas uterine leiomyosarcomas had significantly higher frequencies of allelic loss than both leiomyomas and STUMPs.
  • Molecular profiling may thus provide a valuable tool in assessment of malignancy in uterine smooth muscle tumors.
  • [MeSH-major] Genes, Tumor Suppressor / physiology. Loss of Heterozygosity. Neoplasm Metastasis / genetics. Smooth Muscle Tumor / genetics. Uterine Neoplasms / genetics

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  • (PMID = 16330948.001).
  • [ISSN] 0147-5185
  • [Journal-full-title] The American journal of surgical pathology
  • [ISO-abbreviation] Am. J. Surg. Pathol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
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58. Mikami Y, Kiyokawa T, Moriya T, Sasano H: Immunophenotypic alteration of the stromal component in minimal deviation adenocarcinoma ('adenoma malignum') and endocervical glandular hyperplasia: a study using oestrogen receptor and alpha-smooth muscle actin double immunostaining. Histopathology; 2005 Feb;46(2):130-6
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  • [Title] Immunophenotypic alteration of the stromal component in minimal deviation adenocarcinoma ('adenoma malignum') and endocervical glandular hyperplasia: a study using oestrogen receptor and alpha-smooth muscle actin double immunostaining.
  • AIMS: To define the phenotypic alteration of the stromal component in association with destructive invasion which is a crucial feature in distinguishing minimal deviation adenocarcinoma (MDA) from benign endocervical glandular lesions.
  • METHODS AND RESULTS: We studied endocervical glandular hyperplasias including non-specific-type (NEGH) (n = 3) and lobular-type (LEGH) (n = 8), and minimal deviation adenocarcinoma (MDA) (n = 11), well-differentiated endocervical adenocarcinoma of usual-type (WDA) (n = 11), and adenocarcinoma in situ (AIS) (n = 6) of the cervix, by double immunostaining for oestrogen receptor (ER) and alpha-smooth muscle actin (alpha-SMA) using peroxidase- and alkaline phosphatase-polymer methods, respectively.
  • [MeSH-minor] Female. Humans. Hyperplasia. Immunohistochemistry / methods. Metaplasia. Muscle, Smooth / chemistry. Neoplasm Invasiveness


59. Kusumi T, Minakawa M, Fukui K, Saito S, Ohashi M, Sato F, Fukuda I, Kijima H: Cardiac tumor comprising two components including typical myxoma and atypical hypercellularity suggesting a malignant change. Cardiovasc Pathol; 2009 Nov-Dec;18(6):369-74
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  • [Title] Cardiac tumor comprising two components including typical myxoma and atypical hypercellularity suggesting a malignant change.
  • BACKGROUND: Cardiac myxoma is a benign neoplasm and is not considered to carry a risk of malignant transformation.
  • We describe a case of a cardiac tumor comprising typical myxoma and atypical cellular parts.
  • METHODS AND RESULTS: A 72-year-old woman was found to have a tumor in the left atrial chamber after undergoing echocardiographic investigation and so she underwent tumor excision surgery.
  • The excised tumor was composed of two components with different features with a smooth transition from one type to the other.
  • The apex of the tumor showed a gelatinous and villous appearance on gross examination, and histological examination revealed that the tumor cells had small oval nuclei and eosinophilic cytoplasm and were arranged in cords and vasoformative structures in the myxoid matrix.
  • The base of the tumor appeared as a solid mass on gross examination with hypercellular proliferation of spindle-shaped tumor cells and intersecting fascicles observed histologically.
  • On immunohistochemistry, the tumor cells were found to be positive for alpha-smooth muscle actin, calretinin, and CD34, and this immunoreactivity was decreased at the tip.
  • CONCLUSIONS: We diagnosed this tumor as cardiac myxoma with an atypical hypercellular component suggesting a malignant change.

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  • (PMID = 18619858.001).
  • [ISSN] 1879-1336
  • [Journal-full-title] Cardiovascular pathology : the official journal of the Society for Cardiovascular Pathology
  • [ISO-abbreviation] Cardiovasc. Pathol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
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60. Kravtsov VG, Zaĭrat'iants OV: [Clinical and morphological characteristics of gastrointestinal stromal tumors]. Arkh Patol; 2007 Sep-Oct;69(5):54-61
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  • GIST are stromal tumors and the gastrointestinal tract (GIT) and some other organs of spindle-cell or epithelioid-cell structure expressing CD117 (C-kit, KIT), as well as those at different rates and in different combinations, CD34, smooth muscle and/or neurogenic differentiation antigens.
  • There are opinions that all such neoplasms are potentially malignany and small-sized GISTs are benign and have the minimum mitotic activity.
  • [MeSH-minor] Antigens, CD34 / biosynthesis. Antigens, CD34 / genetics. Apoptosis / genetics. Enzyme Activation / genetics. Epithelioid Cells / metabolism. Epithelioid Cells / pathology. Gene Expression Regulation, Neoplastic / genetics. Humans. Liver Neoplasms / drug therapy. Liver Neoplasms / genetics. Liver Neoplasms / metabolism. Liver Neoplasms / pathology. Liver Neoplasms / secondary. Melanoma / genetics. Melanoma / metabolism. Melanoma / pathology. Mitosis / genetics. Mutation. Myocytes, Smooth Muscle / metabolism. Myocytes, Smooth Muscle / pathology. Neoplasm Metastasis. Neoplastic Stem Cells / metabolism. Neoplastic Stem Cells / pathology. Peritoneal Neoplasms / drug therapy. Peritoneal Neoplasms / genetics. Peritoneal Neoplasms / pathology. Peritoneal Neoplasms / secondary. Sarcoma / drug therapy. Sarcoma / genetics. Sarcoma / metabolism. Sarcoma / pathology

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  • (PMID = 18074824.001).
  • [ISSN] 0004-1955
  • [Journal-full-title] Arkhiv patologii
  • [ISO-abbreviation] Arkh. Patol.
  • [Language] rus
  • [Publication-type] English Abstract; Journal Article; Review
  • [Publication-country] Russia (Federation)
  • [Chemical-registry-number] 0 / Antigens, CD34; EC 2.7.10.1 / Proto-Oncogene Proteins c-kit
  • [Number-of-references] 44
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61. Hakverdi S, Dolapçioğlu K, Güngören A, Yaldiz M, Hakverdi AU: Multiple uterine angioleiomyomas mimicking an ovarian neoplasm: a case report. Eur J Gynaecol Oncol; 2009;30(5):592-4
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  • [Title] Multiple uterine angioleiomyomas mimicking an ovarian neoplasm: a case report.
  • Angioleiomyoma is a rare benign neoplasm that originates from smooth muscle cells and contains thick-walled blood vessels.
  • On pathologic examination of the specimen, the tumor was diagnosed as an angioleiomyoma.
  • Here, we present a case of giant-multiple uterine angioleiomyomas mimicking an ovarian neoplasm.

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  • (PMID = 19899426.001).
  • [ISSN] 0392-2936
  • [Journal-full-title] European journal of gynaecological oncology
  • [ISO-abbreviation] Eur. J. Gynaecol. Oncol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Italy
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62. Seyama K, Kumasaka T, Kurihara M, Mitani K, Sato T: Lymphangioleiomyomatosis: a disease involving the lymphatic system. Lymphat Res Biol; 2010 Mar;8(1):21-31
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  • BACKGROUND: Lymphangioleiomyomatosis (LAM) is a rare neoplastic disease in which abnormal smooth muscle-like cells (LAM cells) proliferate in the lungs and along the axial lymphatic systems, including the lymph nodes and thoracic ducts.
  • LAM cells are transformed due to loss-of-function type mutations of either the TSC1 or TSC2 tumor suppressor genes.
  • The pathological features include the proliferation of benign-looking LAM cells and the existence of abundant lymphatic vessels that are associated with clinical conditions such as chyle leakage.
  • CONCLUSION: LAM appears to be a disease involving a dysfunction of the lymphatic system and a fascinating model of tumor dissemination that is exclusively lymphangitic.
  • [MeSH-major] Lymphangioleiomyomatosis / metabolism. Lymphatic System / metabolism. Neoplasm Proteins / metabolism


63. Bello IO, Alanen K, Slootweg PJ, Salo T: Alpha-smooth muscle actin within epithelial islands is predictive of ameloblastic carcinoma. Oral Oncol; 2009 Sep;45(9):760-5
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  • [Title] Alpha-smooth muscle actin within epithelial islands is predictive of ameloblastic carcinoma.
  • Ameloblastoma is the most common clinically significant odontogenic tumor.
  • It is considered benign but locally invasive and associated with variable clinico-pathological behavior.
  • Ameloblastic carcinoma is a malignant tumor having features of ameloblastoma in addition to cytologic atypia with or without metastasis.
  • We examined immunohistochemically Ki-67, epithelial membrane antigen (EMA), alpha-smooth muscle actin (alpha-SMA), calponin, p63 and DNA content using image (ICM) and flow cytometry (FCM) in three ameloblastic carcinomas and up to 18 SAs.
  • [MeSH-major] Ameloblastoma / pathology. Carcinoma / pathology. Mandibular Neoplasms / pathology. Maxillary Neoplasms / pathology. Neoplasm Proteins / metabolism
  • [MeSH-minor] Actins / metabolism. Calcium-Binding Proteins / metabolism. Female. Finland. Flow Cytometry. Humans. Image Cytometry. Ki-67 Antigen / metabolism. Male. Membrane Proteins / metabolism. Microfilament Proteins / metabolism. Mucin-1 / metabolism. Muscle, Smooth / metabolism. Muscle, Smooth / pathology. Netherlands. Retrospective Studies

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  • (PMID = 19150605.001).
  • [ISSN] 1879-0593
  • [Journal-full-title] Oral oncology
  • [ISO-abbreviation] Oral Oncol.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Actins; 0 / CKAP4 protein, human; 0 / Calcium-Binding Proteins; 0 / Ki-67 Antigen; 0 / Membrane Proteins; 0 / Microfilament Proteins; 0 / Mucin-1; 0 / Neoplasm Proteins; 0 / calponin
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64. Vujevich JJ, Goldberg LH, Kimyai-Asadi A, Law R: Recurrent nodule on the nasal columella: a good reason to re-biopsy. Int J Dermatol; 2008 Jul;47(7):728-31
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  • METHODS: Frozen sections revealed a spindle cell neoplasm.
  • Permanent section immunohistochemistry sections stained positive for vimentin and smooth muscle actin and negative for S100 and CD34, confirming the diagnosis of leiomyosarcoma.
  • RESULTS: The tumor was removed using Mohs micrographic surgery.
  • Re-biopsy of a "benign" growth may be necessary if clinicopathological correlation does not match with the clinical behavior of the tumor in question.
  • [MeSH-major] Leiomyosarcoma / pathology. Neoplasm Recurrence, Local / pathology. Neurofibroma / pathology. Skin Neoplasms / pathology

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  • (PMID = 18613884.001).
  • [ISSN] 1365-4632
  • [Journal-full-title] International journal of dermatology
  • [ISO-abbreviation] Int. J. Dermatol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
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65. Sulentić P, Abdović S, Filipović J, Tomas D: Pedunculated myolipoma incidentally found in hernial sac: a case report. Acta Clin Croat; 2009 Jun;48(2):171-4
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  • A case of a very rare adipocytic tumor found during corrective surgery for incisional abdominal hernia is presented.
  • During surgery of incisional hernia, a part of small intestine along with a pedunculated tumor was found in hernial sac.
  • The tumor was attached to the medial intra-abdominal peritoneum.
  • On examination, the tumor presented as a totally encapsulated dimorphic benign neoplasm composed of mature adipocytes and well-differentiated smooth muscle cells.
  • Tumor cells were negative for HMB45, estrogen and progesterone.
  • This tumor commonly presents as a large quiescent mass in retroperitoneum in adult females and to our knowledge this is the first report of myolipoma in hernial sac.
  • Characteristic findings, differential diagnosis, prognosis and the possible origin of such a neoplasm are discussed.

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  • (PMID = 19928417.001).
  • [ISSN] 0353-9466
  • [Journal-full-title] Acta clinica Croatica
  • [ISO-abbreviation] Acta Clin Croat
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Croatia
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66. Kubo M, Ihn H, Yamane K, Tamaki K: The expression levels and the differential expression of transforming growth factor-beta receptors in dermatofibroma and dermatofibrosarcoma protuberans. Br J Dermatol; 2006 May;154(5):919-25
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  • BACKGROUND: Dermatofibroma (DF) and dermatofibrosarcoma protuberans (DFSP) are benign and intermediate malignant fibrotic dermal tumours, respectively.
  • RESULTS: We detected strong expression of TGFbeta-RI and TGFbeta-RII on epidermis and epidermal appendages, moderate expression in vascular endothelial cells, smooth muscle cells and neural tissues, and weak expression in fibroblasts in normal skin sections.
  • [MeSH-major] Dermatofibrosarcoma / metabolism. Histiocytoma, Benign Fibrous / metabolism. Neoplasm Proteins / metabolism. Receptors, Transforming Growth Factor beta / metabolism. Skin Neoplasms / metabolism
  • [MeSH-minor] Activin Receptors, Type I / genetics. Activin Receptors, Type I / metabolism. Adult. Biomarkers, Tumor / metabolism. Collagen Type I / metabolism. Diagnosis, Differential. Female. Humans. In Situ Hybridization. Male. Middle Aged. Protein-Serine-Threonine Kinases. RNA, Messenger / genetics. Skin / metabolism. Up-Regulation

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  • (PMID = 16634896.001).
  • [ISSN] 0007-0963
  • [Journal-full-title] The British journal of dermatology
  • [ISO-abbreviation] Br. J. Dermatol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 0 / Collagen Type I; 0 / Neoplasm Proteins; 0 / RNA, Messenger; 0 / Receptors, Transforming Growth Factor beta; EC 2.7.1.11 / TGF-beta type I receptor; EC 2.7.11.1 / Protein-Serine-Threonine Kinases; EC 2.7.11.30 / Activin Receptors, Type I; EC 2.7.11.30 / transforming growth factor-beta type II receptor
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67. Romeo S, Eyden B, Prins FA, Briaire-de Bruijn IH, Taminiau AH, Hogendoorn PC: TGF-beta1 drives partial myofibroblastic differentiation in chondromyxoid fibroma of bone. J Pathol; 2006 Jan;208(1):26-34
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  • Chondromyxoid fibroma (CMF) is a rare benign cartilaginous bone tumour with a lobular architecture containing stellate and myofibroblast-like spindle cells.
  • The aim of this study was to investigate the presence, spatial distribution, and extent of myoid differentiation in CMF and to evaluate a possible causative role for TGF-beta1 signalling, which is known to promote smooth muscle actin (SMA) expression.
  • Twenty cases were studied for immunoreactivity for muscle-specific actin (MSA), SMA, desmin, h-caldesmon, calponin, TGF-beta1, and plasminogen activator inhibitor type 1 (PAI-1).
  • [MeSH-minor] Actins / immunology. Adolescent. Adult. Calcium-Binding Proteins / immunology. Calmodulin-Binding Proteins / immunology. Cell Transformation, Neoplastic. Child. Chondrocytes / pathology. Chondrocytes / ultrastructure. Desmin / immunology. Female. Fibroblasts / pathology. Fibroblasts / ultrastructure. Fibronectins / genetics. Fibronectins / immunology. Genes, Neoplasm / genetics. Humans. Immunohistochemistry / methods. Male. Microfilament Proteins. Microscopy, Electron / methods. Microscopy, Immunoelectron / methods. Middle Aged. Muscle Proteins / immunology. Muscle, Smooth / immunology. Neoplasm Proteins / immunology. Plasminogen Activator Inhibitor 1 / genetics. Plasminogen Activator Inhibitor 1 / immunology. Reverse Transcriptase Polymerase Chain Reaction / methods. Signal Transduction / physiology. Transforming Growth Factor beta1

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  • [Copyright] Copyright 2005 Pathological Society of Great Britain and Ireland.
  • (PMID = 16278817.001).
  • [ISSN] 0022-3417
  • [Journal-full-title] The Journal of pathology
  • [ISO-abbreviation] J. Pathol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Actins; 0 / Calcium-Binding Proteins; 0 / Calmodulin-Binding Proteins; 0 / Desmin; 0 / Fibronectins; 0 / Microfilament Proteins; 0 / Muscle Proteins; 0 / Neoplasm Proteins; 0 / Plasminogen Activator Inhibitor 1; 0 / TGFB1 protein, human; 0 / Transforming Growth Factor beta; 0 / Transforming Growth Factor beta1; 0 / calponin
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68. Gupta C, Malani AK, Gupta V, Singh J, Ammar H: Metastatic retroperitoneal epithelioid angiomyolipoma. J Clin Pathol; 2007 Apr;60(4):428-31
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  • Angiomyolipoma (AML) is a rare benign neoplasm that usually arises in the kidneys, but may rarely originate in sites such as the retroperitoneum, liver and bone.
  • It is characterised by an intimate admixture of blood vessels, smooth muscle and fat.

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  • [Cites] Histopathology. 2000 May;36(5):451-6 [10792487.001]
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  • (PMID = 17405979.001).
  • [ISSN] 0021-9746
  • [Journal-full-title] Journal of clinical pathology
  • [ISO-abbreviation] J. Clin. Pathol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] England
  • [Other-IDs] NLM/ PMC2001107
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69. Arora R, Abou-Bakr AA, Ahmad MS: Intravenous leiomyomatosis of the uterus. Gulf J Oncolog; 2010 Jan;(7):57-9
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  • Intravenous leiomyomatosis (IVL) is a rare neoplasm characterized by nodular masses of histologically benign looking smooth muscle cells growing within uterine or extrauterine venous system.The exact etiology is unclear and benign histological appearance of neoplastic smooth muscles can be deceptive since IVL might behave in a malignant fashion.
  • Total abdominal hysterectomy and excision of any extrauterine tumor if technically feasible is the cornerstone of treatment.

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  • (PMID = 20164011.001).
  • [ISSN] 2078-2101
  • [Journal-full-title] The Gulf journal of oncology
  • [ISO-abbreviation] Gulf J Oncolog
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Kuwait
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70. Perko Z, Durdov MG, Druzijanić N, Kraljević D, Juricić J: Giant perianal angiomyofibroblastoma--a case report. Coll Antropol; 2006 Mar;30(1):243-6
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  • A 45-year old female had a long history of slow growing perianal tumor at the right side of her anus.
  • Immunohistochemically, expression of smooth-muscle actin and desmin, as well as estrogen and progesterone receptor were found in the tumour cells.
  • This rare benign tumour typically involves vulvovaginal, pelvic and perinal region.
  • It is important to separate this neoplasm from locally invasive aggressive angiomyxoma and low grade fibromyxoid sarcoma, which can arise in the the same localisation.
  • [MeSH-major] Angiomyoma / pathology. Genital Neoplasms, Female / pathology. Neoplasms, Muscle Tissue / pathology

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  • (PMID = 16617606.001).
  • [ISSN] 0350-6134
  • [Journal-full-title] Collegium antropologicum
  • [ISO-abbreviation] Coll Antropol
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Croatia
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71. Liegl B, Hornick JL, Fletcher CD: Primary cutaneous PEComa: distinctive clear cell lesions of skin. Am J Surg Pathol; 2008 Apr;32(4):608-14
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  • Tumor size ranged from 0.7 to 2 cm (median size, 1.5 cm).
  • Tumor cells had clear, palely eosinophilic or granular cytoplasm.
  • Multinucleate tumor giant cells were observed in 3 cases.
  • In cases where HMB-45 was positive in fewer than 5% of tumor cells (5/10), microphthalmia transcription factor was positive in the majority of the tumor cell nuclei.
  • Desmin positivity was observed in 5 and smooth muscle actin in 1 case, respectively.
  • The other muscle markers (caldesmon, calponin) and also pan-keratin and epithelial membrane antigen were negative.
  • Primary cutaneous PEComas are rare and thus far apparently benign cutaneous tumors.
  • [MeSH-major] Biomarkers, Tumor / analysis. Melanoma / pathology. Skin Neoplasms / pathology
  • [MeSH-minor] Actins / analysis. Adolescent. Adult. Aged. Aged, 80 and over. Antigens, Neoplasm / analysis. Calcium-Binding Proteins / analysis. Calmodulin-Binding Proteins / analysis. Dermis / pathology. Desmin / analysis. Diagnosis, Differential. Female. Giant Cells / pathology. Humans. Immunohistochemistry. Keratins / analysis. MART-1 Antigen. Male. Melanoma-Specific Antigens. Microfilament Proteins / analysis. Microphthalmia-Associated Transcription Factor / analysis. Middle Aged. Mitotic Index. Mucin-1 / analysis. Neoplasm Invasiveness. Neoplasm Proteins / analysis. Subcutaneous Fat / pathology

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  • [CommentIn] Am J Dermatopathol. 2016 Feb;38(2):165-6 [26825164.001]
  • (PMID = 18277881.001).
  • [ISSN] 0147-5185
  • [Journal-full-title] The American journal of surgical pathology
  • [ISO-abbreviation] Am. J. Surg. Pathol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Actins; 0 / Antigens, Neoplasm; 0 / Biomarkers, Tumor; 0 / Calcium-Binding Proteins; 0 / Calmodulin-Binding Proteins; 0 / Desmin; 0 / MART-1 Antigen; 0 / MITF protein, human; 0 / MLANA protein, human; 0 / Melanoma-Specific Antigens; 0 / Microfilament Proteins; 0 / Microphthalmia-Associated Transcription Factor; 0 / Mucin-1; 0 / Neoplasm Proteins; 0 / calponin; 68238-35-7 / Keratins
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72. Chang T, Husain AN, Colby T, Taxy JB, Welch WR, Cheung OY, Early A, Travis W, Krausz T: Pneumocytic adenomyoepithelioma: a distinctive lung tumor with epithelial, myoepithelial, and pneumocytic differentiation. Am J Surg Pathol; 2007 Apr;31(4):562-8
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  • [Title] Pneumocytic adenomyoepithelioma: a distinctive lung tumor with epithelial, myoepithelial, and pneumocytic differentiation.
  • Some glands were filled with colloidlike secretion and had an inner, cuboidal epithelial cell layer (pankeratin, epithelial membrane antigen, and thyroid transcription factor-1 positive), surrounded by an outer layer of myoepithelial cells merging with foci of spindled myoepithelial cells (high molecular weight keratin, S100, smooth muscle actin, calponin, caldesmon, and p63 positive).
  • The biologic behavior to date has been benign.
  • This is the first reported series of a distinctive lung tumor with epithelial, myoepithelial, and pneumocytic differentiation that differs histologically from all previously recognized pulmonary salivary gland-type and pneumocytic tumors.
  • It is a unique benign appearing neoplasm for which the designation pneumocytic adenomyoepithelioma is suggested.
  • [MeSH-minor] Biomarkers, Tumor / analysis. Female. Humans. Microscopy, Electron, Transmission. Middle Aged. Treatment Outcome

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  • (PMID = 17414103.001).
  • [ISSN] 0147-5185
  • [Journal-full-title] The American journal of surgical pathology
  • [ISO-abbreviation] Am. J. Surg. Pathol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor
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73. Starost MF: Adenomyofibroma of the fimbria in a cynomolgus monkey (Macaca fascicularis). J Vet Diagn Invest; 2009 Nov;21(6):892-4
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  • The interstitium contained a proliferation of smooth muscle stromal cells admixed with varying amounts of collagen.
  • This benign neoplasm should be considered as a differential diagnosis for masses arising from the fallopian tube in old-world macaques.

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  • (PMID = 19901298.001).
  • [ISSN] 1040-6387
  • [Journal-full-title] Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc
  • [ISO-abbreviation] J. Vet. Diagn. Invest.
  • [Language] eng
  • [Grant] United States / Intramural NIH HHS / /
  • [Publication-type] Case Reports; Journal Article; Research Support, N.I.H., Intramural
  • [Publication-country] United States
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74. Ip PP, Cheung AN, Clement PB: Uterine smooth muscle tumors of uncertain malignant potential (STUMP): a clinicopathologic analysis of 16 cases. Am J Surg Pathol; 2009 Jul;33(7):992-1005
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Uterine smooth muscle tumors of uncertain malignant potential (STUMP): a clinicopathologic analysis of 16 cases.
  • BACKGROUND: The current World Health Organization classification indicates that a uterine smooth muscle tumor that cannot be histologically diagnosed as unequivocally benign or malignant should be termed "smooth muscle tumor of uncertain malignant potential" (STUMP).
  • DESIGN: The clinicopathologic features of 16 cases of STUMP that exhibited usual smooth muscle differentiation, diagnosed between 1992 and 2006 from 11 hospitals, were studied and classified into 4 subgroups using terminology and criteria described by Stanford investigators.
  • RESULTS: The tumors were classified as follows: 6 as "atypical leiomyoma with limited experience", 7 as "smooth muscle tumor of low malignant potential", 2 as "atypical leiomyoma, low risk of recurrence," and 1 as "mitotically active leiomyoma, limited experience."
  • Only 2 tumors recurred, at 15 and 51 months, respectively; both were atypical leiomyoma with limited experience (multifocal moderate-to-severe atypia, no tumor cell necrosis, and mitotic counts of 4 and 5 mitotic figures /10 high-power fields, respectively).
  • Both tumors had areas that were indistinguishable from benign leiomyoma and both had diffuse immunoreactivity for p16 and p53.
  • Six other tumors that had focal staining for these markers all had a benign outcome.
  • CONCLUSIONS: This and other studies suggest that uterine tumors classified as STUMPs using criteria proposed by Stanford investigators are usually clinically benign but should be considered tumors of low malignant potential because they can occasionally recur, in some cases, years after hysterectomy.
  • [MeSH-major] Smooth Muscle Tumor / pathology. Uterine Neoplasms / pathology
  • [MeSH-minor] Biomarkers, Tumor / analysis. Cyclin-Dependent Kinase Inhibitor p16 / biosynthesis. Female. Humans. Immunohistochemistry. Middle Aged. Neoplasm Recurrence, Local / epidemiology. Neoplasm Recurrence, Local / pathology. Receptors, Estrogen / biosynthesis. Receptors, Progesterone / biosynthesis. Tumor Suppressor Protein p53 / biosynthesis. Ubiquitin-Protein Ligases / biosynthesis

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  • (PMID = 19417585.001).
  • [ISSN] 1532-0979
  • [Journal-full-title] The American journal of surgical pathology
  • [ISO-abbreviation] Am. J. Surg. Pathol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 0 / Cyclin-Dependent Kinase Inhibitor p16; 0 / Receptors, Estrogen; 0 / Receptors, Progesterone; 0 / Tumor Suppressor Protein p53; EC 6.3.2.19 / MIB1 ligase, human; EC 6.3.2.19 / Ubiquitin-Protein Ligases
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75. Matyja E, Maksymowicz M, Grajkowska W, Olszewski W, Zieliński G, Bonicki W: Spindle cell oncocytoma of the adenohypophysis - a clinicopathological and ultrastructural study of two cases. Folia Neuropathol; 2010;48(3):175-84
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  • It is non-endocrine neoplasm of the anterior pituitary that occurs in adults and usually follows a benign clinical course, corresponding to WHO grade I.
  • The tumour cells exhibited immunoreactivity for S-100 protein, galectin-3, vimentin and epithelial membrane antigen but they were negative for GFAP, anterior pituitary neuroendocrine markers (prolactin, growth hormone, TSH, ACTH, FSH, LH), chromogranin, synaptophysin, cytokeratin CK (AE1/AE3), smooth muscle actin, desmin, CD34 and CD68.

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  • (PMID = 20925001.001).
  • [ISSN] 1509-572X
  • [Journal-full-title] Folia neuropathologica
  • [ISO-abbreviation] Folia Neuropathol
  • [Language] ENG
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Poland
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76. Gomez-Moyano E, Vera-Casaño A, Martinez-Garcia S, Sanz-Trelles A, Crespo-Erchiga V: Two cases of dermatomyofibroma (plaque-like dermal fibromatosis). Int J Dermatol; 2010 Aug;49(8):914-7
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  • BACKGROUND: Dermatomyofibroma is a rare but distinct benign cutaneous mesenchymal neoplasm of fibroblastic/myofibroblastic differentiation.
  • In both cases the spindle cells stained positive for smooth muscle actin and the elastic fibers were increased and fragmented.
  • CONCLUSION: Dermatologists and pediatricians should be aware of this benign entity in order to avoid unnecessary treatment.
  • [MeSH-major] Dermis / pathology. Fibroblasts / pathology. Histiocytoma, Benign Fibrous / diagnosis. Muscle, Smooth / pathology. Skin Neoplasms / diagnosis

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  • [Copyright] © 2010 The International Society of Dermatology.
  • (PMID = 21174375.001).
  • [ISSN] 1365-4632
  • [Journal-full-title] International journal of dermatology
  • [ISO-abbreviation] Int. J. Dermatol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
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77. Pedemonte JG, Degiovanni D, Pusterla D, Reibel C, Di Nucci J, Boccio C, Degiovanni R, Dotta A: [Angiomyolipoma and Lenk syndrome: case report]. Actas Urol Esp; 2008 Sep;32(8):850-4
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  • Angiomyolipoma (AML) is a benign clonal neoplasm that consists of varying amounts of mature adipose tissue, smooth muscle, and thick-walled vessels.

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  • (PMID = 19013986.001).
  • [ISSN] 0210-4806
  • [Journal-full-title] Actas urologicas espanolas
  • [ISO-abbreviation] Actas Urol Esp
  • [Language] spa
  • [Publication-type] Case Reports; English Abstract; Journal Article
  • [Publication-country] Spain
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78. Zustin J, Akpalo H, Gambarotti M, Priemel M, Rueger JM, Luebke AM, Reske D, Lange C, Pueschel K, Lohmann C, Rüther W, Amling M, Alberghini M: Phenotypic diversity in chondromyxoid fibroma reveals differentiation pattern of tumor mimicking fetal cartilage canals development: an immunohistochemical study. Am J Pathol; 2010 Sep;177(3):1072-8
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  • [Title] Phenotypic diversity in chondromyxoid fibroma reveals differentiation pattern of tumor mimicking fetal cartilage canals development: an immunohistochemical study.
  • Chondromyxoid fibroma represents a rare benign cartilaginous tumor of young patients occurring in a subcortical metaphyseal location.
  • Archival paraffin-embedded tissues from 4 fetal femora and 10 cases of chondromyxoid fibroma were analyzed simultaneously using histochemistry (safranin O) and established immunohistochemical antibodies (CD34, CD163, and smooth muscle actin).
  • Based on the observed substantial morphological similarity between the cartilage canals and chondromyxoid fibroma, we suggest that the chondromyxoid fibroma represents a neoplasm originating from or mimicking the fetal cartilage canals within the immature cartilage.

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  • [Cites] Am J Clin Pathol. 2001 Aug;116(2):271-7 [11488075.001]
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  • (PMID = 20671262.001).
  • [ISSN] 1525-2191
  • [Journal-full-title] The American journal of pathology
  • [ISO-abbreviation] Am. J. Pathol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Other-IDs] NLM/ PMC2928941
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79. Ma L, Kowalski D, Javed K, Hui P: Atypical angiomyolipoma of kidney in a patient with tuberous sclerosis: a case report with p53 gene mutation analysis. Arch Pathol Lab Med; 2005 May;129(5):676-9
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  • Angiomyolipoma (AML) is the most common benign mesenchymal tumor of the kidney.
  • It belongs to the family of perivascular epithelioid cell tumors and is typically composed of blood vessels, adipose tissue, and smooth muscle- like cells, which are characteristically positive for HMB-45.
  • The tumor consisted of mostly epithelioid cells with marked nuclear pleomorphism and frequent mitoses and was positive for HMB-45.
  • [MeSH-minor] Adult. Biomarkers, Tumor / analysis. Cytoplasm / ultrastructure. DNA Mutational Analysis. DNA, Neoplasm / genetics. Female. Humans. Immunohistochemistry. Intercellular Junctions / ultrastructure. Nephrectomy. Polymerase Chain Reaction. Polymorphism, Single-Stranded Conformational. Treatment Outcome


80. Rousseau A, Kujas M, van Effenterre R, Boch AL, Carpentier A, Leroy JP, Poirier J: Primary intracranial myopericytoma: report of three cases and review of the literature. Neuropathol Appl Neurobiol; 2005 Dec;31(6):641-8
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  • Myopericytoma is a benign tumour generally arising in the subcutaneous and superficial soft tissues of the extremities.
  • The lesional cells showed apparent differentiation towards perivascular myoid cells as witnessed by smooth muscle actin expression.
  • Myopericytoma is a recently described neoplasm, and it is likely that reappraisal of intracranial haemangiopericytoma with which it shares many histopathologic features will lead to more case reports of primary intracranial myopericytoma.

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  • (PMID = 16281913.001).
  • [ISSN] 0305-1846
  • [Journal-full-title] Neuropathology and applied neurobiology
  • [ISO-abbreviation] Neuropathol. Appl. Neurobiol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article; Review
  • [Publication-country] England
  • [Number-of-references] 24
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81. Miettinen M, Makhlouf HR, Sobin LH, Lasota J: Plexiform fibromyxoma: a distinctive benign gastric antral neoplasm not to be confused with a myxoid GIST. Am J Surg Pathol; 2009 Nov;33(11):1624-32
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  • [Title] Plexiform fibromyxoma: a distinctive benign gastric antral neoplasm not to be confused with a myxoid GIST.
  • A great majority of gastric mesenchymal tumors are gastrointestinal stromal tumor (GIST).
  • In this report, we describe 12 cases of a distinctive gastric tumor, named here as plexiform fibromyxoma.
  • The tumor cells varied from oval to spindled and had limited atypia and mitotic activity < 5/50 high-power fields.
  • Immunohistochemically, the tumor cells were positive for alpha smooth muscle actin, and variably for CD10, and were consistently negative for KIT, DOG1, CD34, desmin, and S100 protein.
  • Additional 3 patients survived 14 to 25 years with unknown tumor status.
  • Plexiform fibromyxoma is a distinctive benign gastric antral neoplasm that should be separated from GIST, nerve sheath tumors, and other fibromyxoid neoplasms.
  • [MeSH-minor] Adolescent. Adult. Aged. Biomarkers, Tumor / analysis. Child. Diagnosis, Differential. Disease-Free Survival. Female. Humans. Immunohistochemistry. Male. Middle Aged. Neoplasm Invasiveness. Young Adult

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  • (PMID = 19675452.001).
  • [ISSN] 1532-0979
  • [Journal-full-title] The American journal of surgical pathology
  • [ISO-abbreviation] Am. J. Surg. Pathol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor
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82. Wachter DL, Büttner MJ, Grimm K, Hartmann A, Agaimy A: Leiomyoma of the gallbladder: a case report with review of the literature and discussion of the differential diagnosis. J Clin Pathol; 2010 Feb;63(2):177-9
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  • To our knowledge, only a few patients with multiple Epstein-Barr virus (EBV)-associated smooth muscle tumours of the gallbladder in the setting of immunodeficiency have been reported in the English literature, but no single case of conventional leiomyoma has been well documented to date.
  • Histology and immunohistochemistry were consistent with a benign smooth muscle neoplasm that is very similar to conventional uterine leiomyoma.

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  • (PMID = 20154041.001).
  • [ISSN] 1472-4146
  • [Journal-full-title] Journal of clinical pathology
  • [ISO-abbreviation] J. Clin. Pathol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article; Review
  • [Publication-country] England
  • [Number-of-references] 10
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83. Miyamoto H, Molena DA, Schoeniger LO, Haodong Xu: Solitary fibrous tumor of the pancreas: a case report. Int J Surg Pathol; 2007 Jul;15(3):311-4
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  • [Title] Solitary fibrous tumor of the pancreas: a case report.
  • Solitary fibrous tumor (SFT) is an unusual mesenchymal neoplasm that most often arises in the pleura; however, it has recently been described in a number of extrapleural sites.
  • This report describes an extremely rare case of a benign SFT arising in the pancreas.
  • An endocrine tumor was clinically suspected.
  • Microscopically, the tumor was composed of bland uniform spindle cells arranged between collagen bundles.
  • On immunohistochemical studies, these spindle cells were positive for CD34 and bcl-2 but negative for cytokeratin (AE1+AE3 and Cam5.2), smooth muscle actin, desmin, S-100, and c-kit.

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  • (PMID = 17652547.001).
  • [ISSN] 1066-8969
  • [Journal-full-title] International journal of surgical pathology
  • [ISO-abbreviation] Int. J. Surg. Pathol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Antigens, CD34; 0 / Proto-Oncogene Proteins c-bcl-2
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84. Cîmpean AM, Raica M, Nariţa D: Diagnostic significance of the immunoexpression of CD34 and smooth muscle cell actin in benign and malignant tumors of the breast. Rom J Morphol Embryol; 2005;46(2):123-9
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  • [Title] Diagnostic significance of the immunoexpression of CD34 and smooth muscle cell actin in benign and malignant tumors of the breast.
  • PURPOSE: Our aim was to investigate the distribution of CD34 and smooth muscle cell actin positive myofibroblasts in the stroma of the normal mammary gland, benign and malignant tumors.
  • RESULTS: We have found normal breast tissue, sclerosing adenosis, fibroadenomas, fibrocystic diseases, phyllodes tumor, DCIS, ductal invasive, lobular, squamous, medullary, mucinous, and papillary carcinomas.
  • All the normal breast tissues and most of benign lesions were positive for CD34 and negative for SMA.
  • The exceptions were represented by a case of fibroadenoma and the phyllodes tumor, with CD34 positivity and a focal acquisition of SMA; fibrocystic disease with associated apocrine metaplasia adjacent to a squamous carcinoma with loss of CD34 expression and focal acquisition of SMA.
  • CONCLUSIONS: Although there were some exceptions especially when one of the two markers was interpreted separately and in some cases associated with sclerotic stroma, we conclude that the combined expression of CD34 and a-SMA is of potential diagnostic value in the distinction between benign and malignant tumors in some difficult cases.
  • [MeSH-major] Actins / analysis. Antigens, CD34 / analysis. Breast Neoplasms / pathology. Muscle, Smooth / pathology
  • [MeSH-minor] Adult. Aged. Aged, 80 and over. Antigens, CD / analysis. Biopsy. Carcinoma, Ductal / pathology. Female. Fibrocystic Breast Disease / pathology. Humans. Middle Aged. Neoplasm Invasiveness. Smad Proteins / analysis

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  • (PMID = 16286998.001).
  • [ISSN] 1220-0522
  • [Journal-full-title] Romanian journal of morphology and embryology = Revue roumaine de morphologie et embryologie
  • [ISO-abbreviation] Rom J Morphol Embryol
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Romania
  • [Chemical-registry-number] 0 / Actins; 0 / Antigens, CD; 0 / Antigens, CD34; 0 / Smad Proteins
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85. Hornick JL, Fletcher CD: Cellular neurothekeoma: detailed characterization in a series of 133 cases. Am J Surg Pathol; 2007 Mar;31(3):329-40
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  • Cellular neurothekeomas are distinctive benign cutaneous tumors of uncertain histogenesis.
  • Mean tumor size was 1.1 cm (range: 0.3 to 6 cm; 90% <2 cm).
  • In 30% of cases, neurothekeoma was suggested by the referring pathologist; the most common other diagnoses offered were plexiform fibrohistiocytic tumor, benign fibrous histiocytoma, and a low-grade sarcoma.
  • Histologically, most cases were poorly marginated; 33 (25%) infiltrated fat, and 10 (8%) entrapped skeletal muscle (all but 1 situated on the face).
  • All tumors were reactive for NKI-C3, 110/123 (89%) expressed neuron-specific enolase, 73/127 (57%) showed at least focal staining for smooth muscle actin, and only 1 was focally desmin positive.
  • Ten tumors recurred locally (7 situated on the face), after a mean of 18 months; tumor had been marginally excised or had involved excision margins in all cases with available information.
  • There is no good evidence that these lesions show nerve sheath differentiation and the nomenclature will likely change when the tumor cell lineage is better defined.
  • [MeSH-minor] Adolescent. Adult. Aged. Biomarkers, Tumor / analysis. Child. Child, Preschool. Diagnosis, Differential. Female. Histiocytoma, Benign Fibrous / diagnosis. Humans. Immunohistochemistry. Infant. Male. Middle Aged. Mitosis. Neoplasm Recurrence, Local. Sarcoma / diagnosis

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  • (PMID = 17325474.001).
  • [ISSN] 0147-5185
  • [Journal-full-title] The American journal of surgical pathology
  • [ISO-abbreviation] Am. J. Surg. Pathol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor
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86. Rodriguez FJ, Aubry MC, Tazelaar HD, Slezak J, Carney JA: Pulmonary chondroma: a tumor associated with Carney triad and different from pulmonary hamartoma. Am J Surg Pathol; 2007 Dec;31(12):1844-53
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  • [Title] Pulmonary chondroma: a tumor associated with Carney triad and different from pulmonary hamartoma.
  • Their pulmonary neoplasm(s) were usually asymptomatic, often multiple, well circumscribed, medium-sized (mean diameter=2.8 cm), and composed almost exclusively of cartilage and bone surrounded by a fibrous pseudocapsule.
  • They showed no fat, smooth muscle or entrapped respiratory epithelium, tissues that were common in pulmonary hamartoma (P<0.0001).
  • The pulmonary neoplasms in the Carney triad are well-differentiated benign cartilaginous tumors that are best designated as chondromas.

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  • (PMID = 18043038.001).
  • [ISSN] 0147-5185
  • [Journal-full-title] The American journal of surgical pathology
  • [ISO-abbreviation] Am. J. Surg. Pathol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
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87. Lee HJ, Choi J, Kim KR: Pulmonary benign metastasizing leiomyoma associated with intravenous leiomyomatosis of the uterus: clinical behavior and genomic changes supporting a transportation theory. Int J Gynecol Pathol; 2008 Jul;27(3):340-5
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  • [Title] Pulmonary benign metastasizing leiomyoma associated with intravenous leiomyomatosis of the uterus: clinical behavior and genomic changes supporting a transportation theory.
  • Benign metastasizing leiomyoma is a rare lesion characterized by benign-appearing smooth muscle tumor most frequently involving the lung and usually associated with a benign leiomyoma or intravenous leiomyomatosis of the uterus.
  • The pathogenetic mechanism of the tumor has not been clarified, but the possibilities including hormone-sensitive in situ proliferations of smooth muscle bundles, mechanical displacement or intravascular spread of preexisting benign uterine tumor tissue, and metastasized very low-grade uterine leiomyosarcoma have been proposed.
  • We described a case of pulmonary benign metastasizing leiomyoma associated with a uterine intravenous leiomyomatosis in a 46-year-old woman with a result of comparative genomic hybridization study.
  • Unresected pulmonary nodules were left untreated for 13 months after the hysterectomy and wedge biopsy of 3 pulmonary nodules to show no further growth, suggesting clinical behavior of nonmalignant tumor in our case.
  • Benign metastasizing leiomyomas may comprise a heterogeneous group of tumors in terms of their malignant potential and pathogenetic mechanism.
  • [MeSH-minor] DNA, Neoplasm. Female. Genomics. Humans. Middle Aged. Nucleic Acid Hybridization

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  • (PMID = 18580311.001).
  • [ISSN] 1538-7151
  • [Journal-full-title] International journal of gynecological pathology : official journal of the International Society of Gynecological Pathologists
  • [ISO-abbreviation] Int. J. Gynecol. Pathol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / DNA, Neoplasm
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88. Agaimy A, Wünsch PH, Schroeder J, Gaumann A, Dietmaier W, Hartmann A, Hofstaedter F, Mentzel T: Low-grade abdominopelvic sarcoma with myofibroblastic features (low-grade myofibroblastic sarcoma): clinicopathological, immunohistochemical, molecular genetic and ultrastructural study of two cases with literature review. J Clin Pathol; 2008 Mar;61(3):301-6
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  • AIMS: Low-grade myofibroblastic sarcoma (LGMS) represents a rare soft tissue neoplasm with a predilection for the head and neck.
  • The tumour cells strongly expressed vimentin, variably alpha-smooth muscle actin and fibronectin, but were negative for CD117, S-100, desmin, h-caldesmon, beta-catenin, ALK-1, MDM2, PDGFRalpha and PDGFRbeta.
  • LGMS may mimic a variety of benign and low-grade malignant neoplasms and might be under-recognised.
  • [MeSH-major] Neoplasm Recurrence, Local / ultrastructure. Peritoneal Neoplasms / ultrastructure. Sarcoma / ultrastructure. Soft Tissue Neoplasms / ultrastructure
  • [MeSH-minor] Actins / analysis. Aged. Biomarkers, Tumor / analysis. DNA Mutational Analysis. Female. Fibronectins / analysis. Humans. Immunohistochemistry. Mesentery. Middle Aged. Mitotic Index. Pelvis. Proto-Oncogene Proteins c-kit / genetics. Receptor, Platelet-Derived Growth Factor alpha / genetics. Vimentin / analysis

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  • (PMID = 17513510.001).
  • [ISSN] 1472-4146
  • [Journal-full-title] Journal of clinical pathology
  • [ISO-abbreviation] J. Clin. Pathol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article; Review
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Actins; 0 / Biomarkers, Tumor; 0 / Fibronectins; 0 / Vimentin; EC 2.7.10.1 / Proto-Oncogene Proteins c-kit; EC 2.7.10.1 / Receptor, Platelet-Derived Growth Factor alpha
  • [Number-of-references] 38
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89. Salem F, Rosenblum MK, Jhanwar SC, Kancherla P, Ghossein RA, Carlson DL: Teratocarcinosarcoma of the nasal cavity and paranasal sinuses: report of 3 cases with assessment for chromosome 12p status. Hum Pathol; 2008 Apr;39(4):605-9
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  • Sinonasal teratocarcinosarcoma (SNTCS) is a rare malignant neoplasm with 63 reported cases to date.
  • Microscopic examination revealed admixed epithelial and mesenchymal elements in all 3 cases; benign squamous and glandular epithelium and neuroepithelial tissue were identified, the squamous epithelium demonstrating "fetal-like" cytoplasmic clearing.
  • Mesenchymal proliferations were recognized ranging from well-differentiated smooth muscle to high-grade sarcoma.
  • Our findings suggest that 12p amplification, if it occurs at all in this setting, is exceptional and that SNTCS is a somatic-type neoplasm exhibiting divergent differentiation rather than a germ cell tumor.

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  • (PMID = 18284932.001).
  • [ISSN] 0046-8177
  • [Journal-full-title] Human pathology
  • [ISO-abbreviation] Hum. Pathol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
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90. Lincoln DT, Singal PK, Al-Banaw A: Growth hormone in vascular pathology: neovascularization and expression of receptors is associated with cellular proliferation. Anticancer Res; 2007 Nov-Dec;27(6B):4201-18
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  • Growth hormone (GH) is mitogenic for a variety of vascular tissue cells, including smooth muscle cells, fibroblasts and endothelial cells and exerts its regulatory functions in controlling metabolism, balanced growth and differentiated cell expression by acting on specific membrane-bound receptors, which trigger a phosphorylation cascade resulting in the modulation of numerous signalling pathways and of gene expression.
  • A total of 64 benign and malignant vascular tumours were obtained from different human organ sites, including the chest wall, skin, axillary contents, duodenum, female breast, abdomen, stomach, colon, lymph node, bladder, body flank and neck regions.
  • The presence of GHR in endothelial cells of vascular neoplasm indicates that they are target cells and GH is of importance in the proliferation of vascular tumour angiogenesis.

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  • [ErratumIn] Anticancer Res. 2008 Mar-Apr;28(2b):1439
  • (PMID = 18225592.001).
  • [ISSN] 0250-7005
  • [Journal-full-title] Anticancer research
  • [ISO-abbreviation] Anticancer Res.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Greece
  • [Chemical-registry-number] 0 / Antibodies, Monoclonal; 0 / Receptors, Somatotropin; 9002-72-6 / Growth Hormone
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91. Driemel O, Berndt A, Hartmann A, Mueller-Richter UD, Bauer R, Reichert TE, Kosmehl H: [Clinical and immunohistochemical findings of intra- and extraoral angiosarcomas]. Mund Kiefer Gesichtschir; 2006 Jul;10(4):239-47
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  • For standardized immunohistochemistry following primary antibodies were applied: monoclonal antibodies to pancytoceratin clones AE1/AE3, alpha-smooth-muscle-actin clone 1A4, CD31 clone JC/70A, factor-VIII-related antigen clone F/86, Fli-1 (polyclonal, Zymed, USA), tenascin-C: BC4 (Prof. L.
  • RESULTS: While the benign appearance of the lesions resulted primarily in wrong diagnoses the histopathologic examination of the biopsies revealed the characteristic pattern of angiosarcomas.
  • The tumour associated structural defect of vascular lamina with partial loss of pericytes/vascular smooth muscle cells was identified immunohistochemically by alpha-smooth-muscle-actin and for the first time by tenascin-C.
  • ) The variable presentation and the benign appearance of oral and perioral angiosarcomas may often delay diagnosis.
  • Factor-VIII-related antigen, CD31 as well as Fli-1 identify angiosarcoma. (3.) alpha-smooth-muscle-actin and the loss of the tenascin-C-matrix indicate immunohistochemically the characteristic sarcomatous defect of differentiation.
  • [MeSH-major] Alveolar Process. Biomarkers, Tumor / analysis. Cheek. Hemangiosarcoma / pathology. Mandibular Neoplasms / pathology. Maxillary Sinus Neoplasms / pathology. Mouth Neoplasms / pathology
  • [MeSH-minor] Aged. Humans. Male. Middle Aged. Neoplasm Invasiveness. Prognosis. Retrospective Studies

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  • (PMID = 16788797.001).
  • [ISSN] 1432-9417
  • [Journal-full-title] Mund-, Kiefer- und Gesichtschirurgie : MKG
  • [ISO-abbreviation] Mund Kiefer Gesichtschir
  • [Language] ger
  • [Publication-type] English Abstract; Journal Article
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92. Nucci MR, Harburger D, Koontz J, Dal Cin P, Sklar J: Molecular analysis of the JAZF1-JJAZ1 gene fusion by RT-PCR and fluorescence in situ hybridization in endometrial stromal neoplasms. Am J Surg Pathol; 2007 Jan;31(1):65-70
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  • In addition, we examined 4 cases of highly cellular leiomyoma, a benign morphologic mimic of LGESS.
  • Our data suggest that the JAZF1-JJAZ1 fusion is a frequent, although nonuniform, feature of endometrial stromal neoplasia, irrespective of benign versus malignant classification and smooth muscle differentiation.
  • [MeSH-major] Endometrial Stromal Tumors / genetics. Gene Fusion. Neoplasm Proteins / genetics. Sarcoma, Endometrial Stromal / genetics. Transcription Factors / genetics

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  • (PMID = 17197920.001).
  • [ISSN] 0147-5185
  • [Journal-full-title] The American journal of surgical pathology
  • [ISO-abbreviation] Am. J. Surg. Pathol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / JAZF1 protein, human; 0 / JJAZ1 protein, human; 0 / Neoplasm Proteins; 0 / Transcription Factors
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93. Galajda Z, Copotoiu C, Suciu H, Tint D, Glasz T, Deac R: The diagnosis, morphological particularities, and surgical technique in a case of intravascular leiomyoma extended to the right heart chambers. J Vasc Surg; 2010 Apr;51(4):1000-2
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  • Intravenous leiomyoma is a benign smooth muscle cell tumor of uterine origin that may grow into the pelvic veins and the inferior vena cava.
  • Because cardiac involvement is present in up to 10% of cases, it may be misdiagnosed as a primary cardiac tumor or a venous thrombus-in-transit.
  • We describe a case of intravascular leiomyomatosis with cardiac extension and the morphological particularities of the removed tumor.
  • [MeSH-minor] Adult. Cardiac Surgical Procedures. Diagnostic Errors. Female. Heart Atria / pathology. Heart Atria / surgery. Heart Neoplasms / diagnosis. Heart Ventricles / pathology. Humans. Hysterectomy. Myxoma / diagnosis. Neoplasm Invasiveness. Ovariectomy. Treatment Outcome

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  • (PMID = 20045621.001).
  • [ISSN] 1097-6809
  • [Journal-full-title] Journal of vascular surgery
  • [ISO-abbreviation] J. Vasc. Surg.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
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94. Veit AC, Painter JT, Miller RA, Hardisty JF, Dixon D: Characterization of uterine granular cell tumors in B6C3F1 mice: a histomorphologic, immunohistochemical, and ultrastructural study. Vet Pathol; 2008 Sep;45(5):654-62
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  • The granular cell tumor is most often a benign neoplasm of uncertain origin.
  • Tissue sections were evaluated histologically and stained with hematoxylin and eosin, periodic acid-Schiff with diastase resistance, Masson's trichrome, toluidine blue, phosphotungstic acid-hematoxylin, and stained immunohistochemically with a panel of antibodies to muscle (desmin, alpha smooth muscle actin), neural (S-100, neuron specific enolase), epithelial (wide-spectrum cytokeratin), and macrophage (F4/80) markers.
  • The main histomorphologic feature of tumor cells was the presence of abundant cytoplasmic eosinophilic granules that stained positive for periodic acid-Schiff with diastase resistance.
  • Three tumors had positive to weakly positive immunoreactivity for desmin, and 1 was positive for alpha smooth muscle actin.
  • [MeSH-major] Granular Cell Tumor / veterinary. Uterine Neoplasms / veterinary

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  • (PMID = 18725470.001).
  • [ISSN] 0300-9858
  • [Journal-full-title] Veterinary pathology
  • [ISO-abbreviation] Vet. Pathol.
  • [Language] eng
  • [Grant] United States / Intramural NIH HHS / / Z99 ES999999
  • [Publication-type] Journal Article; Research Support, N.I.H., Intramural
  • [Publication-country] United States
  • [Other-IDs] NLM/ NIHMS103826; NLM/ PMC2691646
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95. Brown L: Pathology of uterine malignancies. Clin Oncol (R Coll Radiol); 2008 Aug;20(6):433-47
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  • Some types of mixed epithelial and stromal neoplasm are described and contrasted with carcinosarcoma.
  • The concept of stromal sarcoma and high-grade uterine sarcoma is described and an outline of malignant smooth muscle tumours of the uterus includes a description of smooth muscle tumours of uncertain malignant potential and worrying benign smooth muscle lesions.

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  • (PMID = 18499412.001).
  • [ISSN] 0936-6555
  • [Journal-full-title] Clinical oncology (Royal College of Radiologists (Great Britain))
  • [ISO-abbreviation] Clin Oncol (R Coll Radiol)
  • [Language] eng
  • [Publication-type] Journal Article; Review
  • [Publication-country] England
  • [Number-of-references] 233
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96. Zhang YX, Chen HL, Ye B, Yang F, Yu LY: [Study on expression and methylation of caveolin 1 gene in non-small cell lung cancers]. Zhonghua Bing Li Xue Za Zhi; 2008 May;37(5):300-4
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  • METHODS: Immunohistochemistry and quanta Qd600 staining were used to detect the expression of Cav-1 in tissues from benign lung lesions (n = 17) and NSCLC (n = 123).
  • RESULTS: Cav-1 protein was highly expressed in cytoplasm and cell membrane of normal bronchial epithelium, alveolar epithelium, endothelial cells, fibroblasts and smooth muscle cells.
  • Amongst the NSCLC group, there was no statistically significant difference in Cav-1 protein expression in different histologic types (P = 0.552) and tumor grades (P = 0.160).
  • On the other hand, Cav-1 protein immunoreactivity was remarkably higher in advanced tumor stage: 72.7% in stage III A + III B, compared with 9.4% in stage I A + I B and 38.3% in stage II A + II B (P = 0.001).
  • CONCLUSIONS: High expression of Cav-1 protein is respected of the aggressive clinical behavior and advanced tumor stage.
  • [MeSH-minor] Aged. DNA Methylation. Female. Humans. Immunohistochemistry. Male. Middle Aged. Neoplasm Staging / methods. Somatoform Disorders

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  • (PMID = 18956646.001).
  • [ISSN] 0529-5807
  • [Journal-full-title] Zhonghua bing li xue za zhi = Chinese journal of pathology
  • [ISO-abbreviation] Zhonghua Bing Li Xue Za Zhi
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] China
  • [Chemical-registry-number] 0 / Caveolin 1
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97. Saeed AS, Hanaa B, Faisal AS, Najla AM: Cotyledonoid dissecting leiomyoma of the uterus: a case report of a benign uterine tumor with sarcomalike gross appearance and review of literature. Int J Gynecol Pathol; 2006 Jul;25(3):262-7
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  • [Title] Cotyledonoid dissecting leiomyoma of the uterus: a case report of a benign uterine tumor with sarcomalike gross appearance and review of literature.
  • Cotyledonoid dissecting leiomyoma (Sternberg tumor) is a very rare variant of uterine smooth muscle tumor with an unusual and alarming gross appearance.
  • An intraoperative frozen section was requested, and a diagnosis of a benign smooth muscle tumor was given.
  • Total abdominal hysterectomy and bilateral salpingo-oophorectomy were performed with removal of the pelvic tumor extension.
  • Thorough tumor sampling was performed and showed nodules of interlacing bundles of bland-looking smooth muscle cells, separated by expanded, edematous, and highly vascularized stroma.
  • Immunohistochemical studies confirmed the smooth muscle nature of the tumor.
  • [MeSH-minor] Actins / analysis. Adult. Antigens, CD34 / analysis. Female. Frozen Sections. Humans. Proto-Oncogene Proteins c-kit / analysis. Receptors, Progesterone / analysis. Sarcoma / chemistry. Sarcoma / diagnosis. Sarcoma / pathology. Smooth Muscle Tumor / chemistry. Smooth Muscle Tumor / diagnosis. Smooth Muscle Tumor / pathology

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  • (PMID = 16810065.001).
  • [ISSN] 0277-1691
  • [Journal-full-title] International journal of gynecological pathology : official journal of the International Society of Gynecological Pathologists
  • [ISO-abbreviation] Int. J. Gynecol. Pathol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article; Review
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Actins; 0 / Antigens, CD34; 0 / Receptors, Progesterone; EC 2.7.10.1 / Proto-Oncogene Proteins c-kit
  • [Number-of-references] 13
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98. Browne TJ, Fletcher CD: Haemosiderotic fibrolipomatous tumour (so-called haemosiderotic fibrohistiocytic lipomatous tumour): analysis of 13 new cases in support of a distinct entity. Histopathology; 2006 Mar;48(4):453-61
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  • AIMS: To describe 13 new cases of a rare soft tissue neoplasm currently known as haemosiderotic fibrohistiocytic lipomatous tumour (HFHLL) and to further its characterization.
  • Immunohistochemistry in 10 cases showed 7/9 CD34+; all were negative for smooth muscle actin, CD68, S100 and desmin.
  • [MeSH-major] Hemosiderosis / pathology. Histiocytoma, Benign Fibrous / pathology. Lipoma / pathology. Soft Tissue Neoplasms / pathology

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  • (PMID = 16487368.001).
  • [ISSN] 0309-0167
  • [Journal-full-title] Histopathology
  • [ISO-abbreviation] Histopathology
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Antigens, CD34; 9011-92-1 / Hemosiderin
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99. Mentzel T, Dei Tos AP, Sapi Z, Kutzner H: Myopericytoma of skin and soft tissues: clinicopathologic and immunohistochemical study of 54 cases. Am J Surg Pathol; 2006 Jan;30(1):104-13
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  • Perivascular neoplasms comprise traditionally glomus tumor and hemangiopericytoma (HPC).
  • Whereas glomus tumor represents a well-defined entity, the existence of HPC as a separate entity has been questioned because a number of neoplasms of different lines of differentiation are characterized by a HPC-like vascular growth pattern.
  • Immunohistochemical stainings using alpha-smooth muscle actin (ASMA), desmin, and h-caldesmon antibodies were performed, and clinical data and follow-up information were obtained from referring pathologists.
  • Histologically, in all cases, numerous thin-walled vessels and a concentric, perivascular arrangement of ovoid, plump spindled to round myoid tumor cells was seen.
  • Despite overlapping morphologic features to angioleiomyoma and myofibroma, myopericytoma represents a distinct perivascular, myoid neoplasm of skin and soft tissues, characterized by a broad morphologic spectrum of concentrically, perivascularly growing myoid tumor cells that stain positively for ASMA and often for h-caldesmon, whereas desmin is usually negative.
  • Most cases of myopericytoma behave in a benign fashion, but local recurrences and rarely metastases may occur in atypical and malignant neoplasms.
  • [MeSH-major] Biomarkers, Tumor / analysis. Neoplasms, Vascular Tissue / pathology. Skin Neoplasms / pathology. Soft Tissue Neoplasms / pathology
  • [MeSH-minor] Adolescent. Adult. Aged. Aged, 80 and over. Angiomyoma / pathology. Diagnosis, Differential. Female. Glomus Tumor / pathology. Hemangiopericytoma / metabolism. Hemangiopericytoma / pathology. Humans. Immunohistochemistry. Male. Middle Aged. Myofibroma / pathology

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  • (PMID = 16330949.001).
  • [ISSN] 0147-5185
  • [Journal-full-title] The American journal of surgical pathology
  • [ISO-abbreviation] Am. J. Surg. Pathol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor
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100. Angiero F, Sozzi D, Seramondi R, Valente MG: Epithelial-myoepithelial carcinoma of the minor salivary glands: immunohistochemical and morphological features. Anticancer Res; 2009 Nov;29(11):4703-9
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  • AIMS: Epithelial-myoepithelial carcinoma (EMC) is a rare malignant salivary gland neoplasm that most commonly occurs in the parotid gland, but can also arise in the minor salivary glands.
  • All parts of each tumor were surrounded by a myoepithelial cell rim and there was evidence of invasion.
  • RESULTS: Immunohistochemical analysis showed the tumor cells to be weakly positive for S100, cytokeratin (CK) CK5/6, CK7, CKAE-1/AE-3 and strongly positive for epithelial membrane antigen (EMA) and p63; they were focally positive for calponin and acute lymphoblastic leukemia antigen (CD10).
  • The tumor cells were negative for vimentin, alpha-smooth muscle actin (SMA) (except one case), glial fibrillar acid protein (GFAP) and MIB1.
  • CONCLUSION: Three cases of minor salivary gland tumors are described and the differential diagnosis underlined in relation to benign myoepithelioma.






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