This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pathophysiology - Neoplasms, Subject name: Surgery
[{'content': 'All are resected in whipples operation except: \nSelect and explain. \nA. Duodenum, B. Head of pancreas, C. Portal vein, D. Common bile duct', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans is 'c' ie Portal vein Whipple's operation (Pancreaticoduodenectomy)is the most commonly performed operation for carcinoma of head of pancreas.It includes resection of: distal stomach - duodenumgall bladder - proximal jejunumCBD - regional lymphatics head of pancreasRestoration of gastrointestinal continuity requiresPancreaticojejunostomy choledochojejunostomy &. Gastrojejunostomy", 'role': 'assistant'}]