This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
Oncocytic carcinoma arises from - 
Select and explain. 
A. Perivascular, B. Glomerulus, C. Loop of henle, D. Collecting duct
D: Collecting duct
Answer: D: Collecting duct 
Explanation: 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.