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Granular cell ameloblastoma mimicking oncocytoma
1Department of Oral Pathology, Mahatma Gandhi Post Graduate Institute of Dental Sciences, Pondicherry, India.
Journal of Oral and Maxillofacial Pathology : JOMFP
|December 19, 2012
Summary
Granular cell ameloblastoma, a rare jaw tumor variant, presents unique granular cells resembling oncocytoma. This case highlights its distinct histopathological features for accurate diagnosis and treatment.
Area of Science:
- Oral pathology
- Oncology
- Histopathology
Background:
- Ameloblastoma is a common odontogenic tumor.
- Granular cell ameloblastoma is a rare variant with distinct cellular morphology.
- Distinguishing it from other tumors is crucial for appropriate management.
Observation:
- A case of granular cell ameloblastoma in the mandible is presented.
- Tumor cells exhibited granular eosinophilic cytoplasm.
- Histopathological features mimicked those of oncocytoma (oxyphilic adenoma).
Findings:
- The tumor cells were arranged in cords, sheets, and follicular patterns.
- The central cells showed granular cytoplasm, while peripheral cells resembled ameloblasts.
- The granular eosinophilic cytoplasm was a prominent feature.
Implications:
- Accurate histopathological diagnosis is essential for differentiating granular cell ameloblastoma from oncocytoma.
- Understanding these features aids in surgical planning and prognosis.
- Further research may elucidate the specific cellular origins and behavior of this variant.