Oncocytic Variant of Mucoepidermoid Carcinoma of the Parotid Salivary Gland–A Rare Case Report

Dr.K.R.Umadevi; Dr.J.Srivani; Dr.Ezhilvizhi.A

Volume : III, Issue : IX, September - 2014

Oncocytic Variant of Mucoepidermoid Carcinoma of the Parotid Salivary Gland–A Rare Case Report

Dr. K. R. Umadevi, Dr. J. Srivani, Dr. Ezhilvizhi. A

Abstract :

Here we present a 50–year–old female who came with a painless mass gradually increasing in size in the left parotid gland since 3 months to our Surgical OPD. With the help of CT ,Ultrasound and FNAC we came to a conclusion pf Parotid Neoplasm. She underwent Superficial Parotidectomy and the specimen was sent to Histopathology and diagnosed as Oncocytic variant of Mucoepidermoid carcinoma. Oncocytic metaplasia in salivary glands is a benign change that is associated with increasing age and also seen in a few salivary gland neoplasms�, which include oncocytoma, Warthin�s tumor, and the rare, oncocytic carcinoma. Oncocytic cells comprised the majority of this low–grade lesion and demonstrated granular cytoplasmic phosphotungstic acid–hematoxylin staining as well as strong immunohistochemical reactivity to antimitochondrial antibody. Oncocytic differentiation in mucoepidermoid carcinoma (MEC) is uncommon.