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1. Mosqueda Taylor A, Meneses García A, Ruíz Godoy Rivera LM, Suárez Roa Mde L, Luna Ortiz K: Malignant odontogenic tumors. A retrospective and collaborative study of seven cases. Med Oral; 2003 Mar-Apr;8(2):110-21
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Malignant odontogenic tumors. A retrospective and collaborative study of seven cases.
  • The frequency, clinico-pathologic features and outcome of malignant odontogenic tumors diagnosed according to the current WHO classification in three pathology services in Mexico City are presented.
  • There were seven cases (5 male and 2 female patients), which represent less than 4% of all odontogenic tumors diagnosed in these services.
  • There were six odontogenic carcinomas (two malignant ameloblastomas, two clear cell odontogenic carcinomas, one primary intraosseous carcinoma and one carcinoma arising in an odontogenic cyst) and one ameloblastic fibrosarcoma.
  • Clear cell odontogenic carcinomas occurred in the canine-premolar region, one in the maxilla and one in the mandible (one ia a man and one in a woman), while the remaining lesions affected the posterior region of the mandible, with a male predominance (4:1), which agrees with previously reported cases.
  • Surgical resection was the treatment employed in all carcinomas, while the ameloblastic fibrosarcoma was treated with chemotherapy due to its large extension, but without favorable response.
  • The patient with primary intraosseous carcinoma had submaxillary and cervical metastases and the neoplasm was the cause of death.
  • In spite of their extremely low frequency, malignant odontogenic tumors are an important cause of extensive surgical procedures in the oral and maxillofacial region.
  • [MeSH-major] Odontogenic Tumors / pathology
  • [MeSH-minor] Adenocarcinoma, Clear Cell / pathology. Adult. Aged. Ameloblastoma / pathology. Female. Humans. Male. Mandibular Neoplasms / pathology. Middle Aged. Odontogenic Cysts / pathology. Prospective Studies. Retrospective Studies

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  • (PMID = 12618671.001).
  • [ISSN] 1137-2834
  • [Journal-full-title] Medicina oral : órgano oficial de la Sociedad Española de Medicina Oral y de la Academia Iberoamericana de Patología y Medicina Bucal
  • [ISO-abbreviation] Med Oral
  • [Language] eng; spa
  • [Publication-type] Journal Article; Multicenter Study
  • [Publication-country] Spain
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2. Ricard AS, Majoufre-Lefebvre C, Siberchicot F, Laurentjoye M: A multirecurrent ameloblastoma metastatic to the lung. Rev Stomatol Chir Maxillofac; 2010 Apr;111(2):98-100
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • INTRODUCTION: The ameloblastoma is a rare tumor of odontogenic epithelial origin.
  • It is a neoplasm in which ameloblastic features are revealed by the primary growth in jaws and by any metastatic growth.
  • We present a case of a multirecurrent ameloblastoma of the mandible metastatic to the lung.
  • OBSERVATION: We present a case of a mandibular malignant ameloblastoma in a 42-year old man with widespread pulmonary metastases.
  • DISCUSSION: Ameloblastoma metastasis often occurs in the lung.
  • The curative treatment is surgical.
  • The results of palliative chemotherapy and radiotherapy are not always efficient.
  • [MeSH-major] Ameloblastoma / pathology. Ameloblastoma / secondary. Lung Neoplasms / secondary. Mandibular Neoplasms / pathology. Mandibular Neoplasms / surgery
  • [MeSH-minor] Adult. Bone Transplantation. Humans. Lung / surgery. Male. Mandible / surgery. Neoplasm Recurrence, Local / surgery. Reconstructive Surgical Procedures

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  • (PMID = 20347463.001).
  • [ISSN] 1776-257X
  • [Journal-full-title] Revue de stomatologie et de chirurgie maxillo-faciale
  • [ISO-abbreviation] Rev Stomatol Chir Maxillofac
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] France
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3. Vigneswaran N, Fernandes R, Rodu B, Baughman RA, Siegal GP: Aggressive osteoblastoma of the mandible closely simulating calcifying epithelial odontogenic tumor. Report of two cases with unusual histopathologic findings. Pathol Res Pract; 2001;197(8):569-76
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Aggressive osteoblastoma of the mandible closely simulating calcifying epithelial odontogenic tumor. Report of two cases with unusual histopathologic findings.
  • Aggressive osteoblastoma is a rare bone-forming neoplasm composed of prominent epithelioid cells that demonstrate locally invasive growth with a high rate of recurrence but no metastatic potential.
  • Clinical, radiographic and pathologic features of mandibular aggressive osteoblastoma in a 21-year-old African-American male and a 12-year-old Caucasian female are presented.
  • Both tumors were resected with wide surgical margins and neither patient had adjuvant radiation or chemotherapy.
  • These tumors were composed of solid sheets of pleomorphic epithelioid cells, eosinophilic amorphous osteoid with foci of calcification, which closely simulated amyloid.
  • Differentiation of this tumor from histologically similar calcifying epithelial odontogenic tumor and low-grade osteosarcoma proved difficult.
  • [MeSH-major] Ameloblastoma / pathology. Mandibular Neoplasms / pathology. Osteoblastoma / pathology
  • [MeSH-minor] Adult. Biomarkers, Tumor / analysis. Child. Diagnosis, Differential. Epithelioid Cells / pathology. Female. Humans. Immunohistochemistry. Male. Osteoblasts / pathology. Osteocalcin / analysis. Vimentin / analysis

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  • (PMID = 11518051.001).
  • [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; 0 / Vimentin; 104982-03-8 / Osteocalcin
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4. Sauk JJ, Nikitakis NG, Scheper MA: Are we on the brink of nonsurgical treatment for ameloblastoma? Oral Surg Oral Med Oral Pathol Oral Radiol Endod; 2010 Jul;110(1):68-78
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Are we on the brink of nonsurgical treatment for ameloblastoma?
  • OBJECTIVE: Recent identification of altered molecular signaling pathways in neoplasia has begun to elucidate mechanisms of oncogenesis, differentiation, and tumor progression, and to suggest plausible nonsurgical considerations for treatment.
  • Here we review the sonic hedgehog (SHH) and PI3K/Akt/mTOR signaling pathways, their role in ameloblastoma, a locally aggressive odontogenic tumor, and evidence for consideration of therapeutic approaches that target these molecular pathways.
  • STUDY DESIGN: This is a comprehensive review of the literature regarding alterations in signaling mechanisms associated with ameloblastomas.
  • RESULTS: The expression of SHH signaling molecules in ameloblastomas at the mRNA and protein levels has intimated that these molecules may play a role in cell proliferation of these tumors.
  • Immunohistochemical analysis has revealed aberrant signaling in the PI3K/Akt/mTOR pathway in ameloblastomas and appears to be a valuable tool for elucidating pathogenesis and aggressiveness, and selecting optimal therapeutics.
  • CONCLUSION: The understanding of altered pathways in ameloblastoma may soon provide nonsurgical options for the treatment of this condition.
  • Thus, tumors that entirely depend on active SHH signaling for survival/growth and maintenance may well be susceptible targets for combined chemotherapy with SHH-specific inhibitors together with PI3K, Akt, or mTOR blocking agents.
  • [MeSH-major] Ameloblastoma / drug therapy. Signal Transduction / drug effects
  • [MeSH-minor] Antineoplastic Agents / therapeutic use. Hedgehog Proteins / antagonists & inhibitors. Hedgehog Proteins / physiology. Humans. Intracellular Signaling Peptides and Proteins / antagonists & inhibitors. Intracellular Signaling Peptides and Proteins / physiology. Phosphatidylinositol 3-Kinases / antagonists & inhibitors. Phosphatidylinositol 3-Kinases / physiology. Protein-Serine-Threonine Kinases / antagonists & inhibitors. Protein-Serine-Threonine Kinases / physiology. Proto-Oncogene Proteins c-akt / antagonists & inhibitors. Proto-Oncogene Proteins c-akt / physiology. TOR Serine-Threonine Kinases. Transcription Factors / antagonists & inhibitors. Transcription Factors / physiology

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  • [Copyright] Copyright (c) 2010 Mosby, Inc. All rights reserved.
  • (PMID = 20418126.001).
  • [ISSN] 1528-395X
  • [Journal-full-title] Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics
  • [ISO-abbreviation] Oral Surg Oral Med Oral Pathol Oral Radiol Endod
  • [Language] eng
  • [Publication-type] Journal Article; Review
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Antineoplastic Agents; 0 / GLI1 protein, human; 0 / Hedgehog Proteins; 0 / Intracellular Signaling Peptides and Proteins; 0 / SHH protein, human; 0 / Transcription Factors; EC 2.7.1.- / Phosphatidylinositol 3-Kinases; EC 2.7.1.1 / MTOR protein, human; EC 2.7.1.1 / TOR Serine-Threonine Kinases; EC 2.7.11.1 / Protein-Serine-Threonine Kinases; EC 2.7.11.1 / Proto-Oncogene Proteins c-akt
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5. Ram H, Mohammad S, Husain N, Gupta PN: Ameloblastic carcinoma. J Maxillofac Oral Surg; 2010 Dec;9(4):415-9
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • Ameloblastic carcinoma (AC) is a rare aggressive malignant epithelial odontogenic tumor of the maxillofacial skeleton with a distinct predilection in the mandible.
  • It may appear de novo or originate from a pre-existing ameloblastoma or odontogenic cyst.
  • It may present as a cystic lesion with benign clinical features or as a large tissue mass with ulceration, significant bone resorption and tooth mobility.
  • Direct extension of the tumour, lymph node involvement and metastasis to various sites has been reported.
  • Wide local excision is the treatment of choice.
  • Radiotherapy and chemotherapy have limited role in the treatment of ameloblastic carcinomas.

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  • (PMID = 22190836.001).
  • [ISSN] 0974-942X
  • [Journal-full-title] Journal of maxillofacial and oral surgery
  • [ISO-abbreviation] J Maxillofac Oral Surg
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] India
  • [Other-IDs] NLM/ PMC3177477
  • [Keywords] NOTNLM ; Ameloblastic carcinoma / Ameloblastoma / Odontogenic tumor
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