This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy (Stomach and Duodenum), Subject name: Surgery
[{'content': 'Tributaries of Lt renal vein are all except: \nSelect and explain. \nA. Left lumbar vein, B. Left gonadal vein, C. Left suprarenal vein, D. Left diaphragmatic vein', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans is 'a' ie left lumbar vein (Ref. BDC (vol II), 3/e, p 272)Tributaries of left renal veinLeft gonadal veinLeft suprarenal veinLeft inferior phrenic veinOn right side they open directly into the inferior vena cava.", 'role': 'assistant'}]