This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pancreas, Subject name: Surgery
[{'content': 'Pancreatico-duodenectomy is not indicated in: \nSelect and explain. \nA. Multiple cyst and calcifications in head of pancreas, B. Narrow pancreatic duct, C. Failed drainage procedure for chronic pancreatitis, D. Possibility of malignancy in head', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) Narrow Pancreatic ductRef: Blumgart 6th ed; pg. 932The most frequent indications for Pancreatico-duodenectomy in patients with Chronic Pancreatitis:* Head of Pancreas is enlarged with cysts and calcification.* Previous endoscopic procedure or drainage procedure was ineffective.* Possibility of Malignancy in head.V shaped Excision procedure (Izbicki procedure) is done for Small Duct disease <3mm diameter Duct', 'role': 'assistant'}]