<prompt> Oncocytic carcinoma arises from -PerivascularGlomerulusLoop of henleCollecting duct  <response>: Oncocytoma Arises from the intercalated cells of collecting ducts. Epithelial tumor composed of large eosinophilic cells having small, round, benign-appearing nuclei that have large nucleoli. Ultrastructurally the eosinophilic cells have numerous mitochondria. 