Oncocytoma of the parotid gland: A rare benign tumour

Abstract

Oncocytomas are one of the infrequent neoplasms seen in the oral cavity accounting for less than 2% of all neoplasms in the oral cavity with less than 1% chance of malignant transformation. They affect the major salivary glands and have a female predilection. The cognisance of the unique clinical and histopathological features is very important to conclude a confirmatory diagnosis. This paper reviews a case of oncocytoma presented in our department and also elucidates the diagnostic criteria for the same.

Molecular testing in salivary gland cytopathology: A practical overview in conjunction with the Milan system

“…FNAs are typically cellular with a clean background. 34 As in the previous cases of rare benign salivary gland tumours, the biggest diagnostic challenge posed by oncocytic TA B L E 2 Immunocytochemical differential diagnosis of basaloid neoplasms in salivary glands. The table includes non-salivary basaloid appearing neoplasms that should be considered in the diagnostic workup.…”

“…It is composed of oncocytic cells lining the salivary ducts. FNAs are typically cellular with a clean background 34 . As in the previous cases of rare benign salivary gland tumours, the biggest diagnostic challenge posed by oncocytic neoplasms is differentiating benign oncocytomas from low‐grade AciCC.…”