ameloblastoma


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ameloblastoma

[‚am·ə·lō·bla′stō·mə]
(medicine)
An epithelial tumor associated with the enamel organ; cells of basal layers resemble the ameloblast. Also known as adamantinoma.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Number and percentage of each pathology Pathology details n % Simple bone cyst 2 3.2 Recurrent ameloblastoma 1 1.6 Osteosarcoma 6 9.7 Osteoid osteoma 1 1.6 Osteochondroma 3 4.8 Multiple myeloma 4 6.5 Metastases 4 6.5 Marrow edema 2 3.2 Lymphoma 4 6.5 Lipoma 1 1.6 Langerhans cell hystocystosis 1 1.6 Inflammatory 4 6.5 Hemangioma 2 3.2 Fibrous dysplasia 1 1.6 Fibrous cortical defect 2 3.2 Ewing sarcoma 16 25.8 Enchondroma 2 3.2 Chondrosarcoma 3 4.8 Chondromyxoid fibroma 1 1.6 Aneurysmal bone cyst 2 3.2 Table 2.
Recurrence and cancerization of ameloblastoma: multivariate analysis of 87 recurrent craniofacial ameloblastoma to assess risk factors associated with early recurrence and secondary ameloblastic carcinoma.
No malignant findings were found, and an ameloblastoma was diagnosed.
A differential diagnosis is also possible where DCs can be distinguished from odontogenic keratocyst, ameloblastic fibroodontoma, ameloblastic fibroma, calcifying epithelial odontogenic tumor, adenomatoid odontogenic tumor, and unicystic ameloblastoma (7).
Odontogenic tumours like Ameloblastoma and Odontogenic Keratocyst (OKC) can pose diagnostic challenges because of their overlapping clinical, radiographic and histopathological presentation.
Impacted teeth may lead to common complications like carious lesions of the impacted or adjacent tooth, periapical infection, periodontal disease and pathology like cyst and tumor.9 Common odontogenic cysts and tumors include dentigerous cyst, calcifying odontogenic cyst, ameloblastoma, adenomatoid odontogenic tumor, odontogenic keratocyst, calcifying epithelial odontogenic tumor, and odontoma.10 Review of literature states that cystic or neoplastic lesions are seen in 16% of impacted teeth and is most common finding during the second and third decades of life.11 The most frequent lesion associated with impacted teeth is the dentigerous cyst.12
Kontogiannis et al., y Sullivan et al., en su estudio retrospectivo de lesiones periapicales tambien encontraron lesiones tumorales como ameloblastoma y queratoquiste odontogenico en el analisis histopatologico, por lo tanto, la diversidad de estas lesiones debe ser considerada y su correcto diagnostico debe ser priorizado.
Extra-gingival peripheral ameloblastoma. Differential diagnoses: neurofibroma or schwannoma of the buccal branch of the left trigeminal nerve, keratocystic odontogenic tumor or solitary fibrous tumor.
A provisional diagnosis of the periapical cyst, odontogenic keratocyst, dentigerous cyst, and unicystic ameloblastoma was arrived at.
Based on the clinical and radiographic examination, a provisional diagnosis of keratocystic odontogenic tumor was given with the differential diagnoses of ameloblastoma, aneurysmal bone cyst, central giant cell granuloma, and central hemangioma owing to the multilocular radiolucent pattern of the present lesion.

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