What is the difference of oncocytosis and oncocytoma?
oncocyte: epithelial cell with polyhedral granular eosinophilic cytoplasm from mitochondrial proliferation.
oncocytosis: multifocal ductal and acinar transform to oncocytes within gland tissue.
oncocytoma: well circumscribed, benign salivary gland tumor of oncocytes. Risk increases with age, found in other endocrine organs, thyroid, parathyroid, kidney. Tx: surgical excision.