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': 'Murphy sign is seen in: March 2013 (g) \nSelect and explain. \nA. Acute pancreatitis, B. Acute appendicitis, C. Acute cholecystitis, D. Acute esophagitis', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. C i.e. Acute cholcystitis Murphy's sign It is useful for differentiating pain in the right upper quadrant. Typically, it is positive in cholecystitis, but negative in choledocholithiasis, pyelonephritis and ascending cholangitis.", 'role': 'assistant'}]