This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Anatomy
[{'content': '"Chains of lakes" appearance seen in \nSelect and explain. \nA. Acute pancreatitis, B. Chronic pancreatitis, C. Carcinoma pancreas, D. Strawberry gallbladder', 'role': 'user'}, {'content': 'Answer: B \nExplanation: ERCP in Chronic pancreatitis Detection of early pathologies and simultaneous treatment possible (e.g., duct dilation, stent inseion) Ductal stones, seen as filling defects"Chain of lakes" or "string of pearls" appearance (characteristic feature)Irregularity, dilation of the main pancreatic duct Ref: Sabiston 20th edition Pgno :1531-1536', 'role': 'assistant'}]