Buccal oncocytoma: Report of a case and literature review

Abstract

Introduction More common in major salivary glands, oncocytomas are very rare tumors. They commonly occur in the parotid gland and are painless slow growing predominantly benign tumors. The term “oncocytoma” was introduced by Jaffe to designate those tumors of the salivary glands that consist predominantly of oncocytic cells lining the salivary ducts (1) Similalry, Meza- Chavez had proposed the name “oxyphilic granular cell adenoma. (2) Oncocytomas are extremely rare, benign and slow growing in nature. Here we present a rare case of buccal oncocytoma which is to our knowledge the 19th case of intraoral minor salivary gland tumor and the 7th reported case of buccal oncocytoma. Case presentation Here we present an exceedingly rare case of buccal oncocytoma in a 14 years boy who presented to the department of ENT with right buccal swelling for 6 months. He was posed the diagnosis of buccal cyst after cytological examination supported by CT scan. He then underwent an excisional biopsy where the final diagnosis was made as Buccal Oncocytoma. Conclusions Though very rare in the picture, conditions like salivary gland oncocytomas still are reported on and off in the literature. The treatment of which is complete surgical excision.

Oncocytoma of the parotid gland: A rare benign tumour

“…The term oxyphilic granular cell adenoma was proposed due to a diffuse granular appearance of the cytoplasm of the tumour cells which is attributed to the eosinophilic granular cytoplasm, due to increased numbers of mitochondria. [ 2 ]…”

“…Meza-Chavez later proposed the term ‘Oxyphilic granular cell adenoma’, ascribed to the eosinophilic granular cytoplasm of tumor cells, due to increased numbers of mitochondria. [ 2 ]…”