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Infrequent clinicopathological findings in 108 ameloblastomas
E J Raubenheimer1, W F van Heerden, C E Noffke
1Department of Oral Pathology and Oral Biology, Medical University of Southern Africa, Medunsa.
Summary
This study analyzed 108 ameloblastomas in a rural African population, revealing diverse clinicopathologic findings beyond typical descriptions. The research highlights significant variations in these jaw tumors, challenging their perceived homogeneity.
Area of Science:
- Oral Pathology
- Oncology
- Histopathology
Background:
- Ameloblastomas are odontogenic neoplasms with diverse clinical and histological presentations.
- Previous studies have primarily focused on classical ameloblastoma subtypes.
- Understanding variations is crucial for accurate diagnosis and treatment planning.
Purpose of the Study:
- To investigate clinicopathologic variations in ameloblastomas beyond classical descriptions.
- To document rare histopathological findings associated with ameloblastomas in a specific population.
- To assess the heterogeneity of ameloblastoma presentations.
Main Methods:
- Retrospective analysis of 108 ameloblastoma cases from a rural Black African population.
- Detailed clinicopathological examination of diagnosed lesions.
- Identification and documentation of non-classical histopathological features.
Main Results:
- Observed diverse presentations including association with ameloblastic fibroma, aneurysmal bone cyst formation, and keratoameloblastoma.
- Identified microscopic changes mimicking adenomatoid odontogenic tumor and HPV18-positive verrucous lesions.
- Documented rare findings such as eosinophilic granules, melanocytes, mucous cell metaplasia, interstitial ossification, desmoplastic ameloblastoma, and odontoameloblastoma.
Conclusions:
- Ameloblastomas exhibit significant clinicopathologic diversity, challenging the notion of a homogeneous tumor group.
- Detailed histopathological analysis is essential for recognizing rare variants and associated lesions.
- Findings contribute to a comprehensive understanding of ameloblastoma spectrum in diverse populations.