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': 'Intraop cholangiography is done in - \nSelect and explain. \nA. Cholangitis, B. Periampullary carcinoma, C. High lipase level, D. Large gall stones', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer- C. High lipase levelClinical H/o jaundice/ pancreatitisElevated bilirubin level Abnormal LFTIncreased amylaseHigh lipase levelDilated CBD on preop USG', 'role': 'assistant'}]