A case report of synchronous bilateral multifocal nodular oncocytic hyperplasia in parotid gland.

Introduction And Importance: Multifocal nodular oncocytic hyperplasia (MNOH), alternatively known as Benign Nodular Oncocytosis, was first identified by Schwartz and Feldman in Cancer in 1969. It manifests as numerous nodular growths of oncocytic cells scattered within the salivary gland tissue; Bilateral and multifocal lesions in the parotid gland are rare occurrences. Among these, bilateral multifocal oncocytic lesions are even less common.