Ameloblastoma is a common and easily diagnosed odontogenic tumor. When present with histologic atypia is crucial because transformation to ameloblastic carcinoma is potentially life-threatening. Ameloblastic carcinoma, the malignant counterpart of the ameloblastoma, a rare entity, is characterized histologically by malignant epithelium in the primary, recurrent, or metastatic deposit. It has a ...

Abstract Background This report outlines a nine-year follow-up of two 10-year-old patients who attended the paediatric dental department reporting an absent mandibular first permanent molar (FPM). Both reported no pain, familial history hypodontia and altered sensation in inferior (ID) nerve distribution. Clinical examination revealed expansion unerupted tooth area. Special Investigations Panor...

AIM To evaluate the use of proliferating cell nuclear antigen index in the different histopathological variants of ameloblastoma, such as the follicular, plexiform, and unicystic types, and in ameloblastic carcinoma by immunohistochemical staining. The proliferating cell nuclear antigen index values of the variants of ameloblastomas and ameloblastic carcinomas are compared in order to determine...

INTRODUCTION Ameloblastoma is a benign odontogenic neoplasm of the jaw, rarely presenting as a malignant tumor. Although it is very important to discriminate ameloblastoma from ameloblastic carcinoma in order to decide the appropriate operative procedure, this is difficult using conventional CT and MRI. CASE DESCRIPTIONS We report a case of maxillar ameloblastoma in a 78-year-old man where FD...

Spindle-cell differentiation in ameloblastic carcinoma is a rare event. Although reported by many authors, it was first described as a separate entity in 1999 by Slater under the heading "low-grade spindle-cell ameloblastic carcinoma." Here, we report a case of low-grade spindle-cell ameloblastic carcinoma arising in pre-existing unicystic ameloblastoma.The patient, a 60-year-old Indian woman, ...

The ameloblastic carcinoma is a rare malignant counterpart of the ameloblastoma. Ameloblastic carcinoma is a malignant lesion with characteristic histologic features and behavior that dictates a more aggressive surgical approach than that of a simple ameloblastoma. However, reliable evidence of its biologic activity is currently unavailable due to the scarcity of well-documented cases. We prese...

Ameloblastic carcinoma is a rare cause of jaw tumors, especially in children. This rare, rapidly growing, malignant tumor of odontogenic origin affects predominantly the mandible and maxilla. Hypercellularity, lack of differentiation, high mitotic index, vascular and neural invasion are its main histological features. Local destruction and distant metastases to the lungs, bones, liver and brain...