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: Surgery
[{'content': 'All of the following are true for patients of ulcerative colitis associated with primary sclerosing cholangitis (PSC), EXCEPT: \nSelect and explain. \nA. They may develop biliary cirrhosis, B. May have raised alkaline phosphatase, C. Increased risk of hilar Cholangiocarcinoma, D. PSC reves after a total colectomy', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Colectomy for colitis makes no difference to the course of primary sclerosing cholangitis. Inpatients with associated ulcerative colitis the course of each disease seems independent of the other. Ref: Schwaz Principles of Surgery, 8th Edition, Page 1210', 'role': 'assistant'}]