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: Radiology
[{'content': 'Chain of lakes appearance is seen in: \nSelect and explain. \nA. Carcinoma pancreas, B. Chronic pancreatitis, C. Acute pancreatitis, D. Pancreatic pseudo cyst', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans: b (Chronic pancreatitis) Ref: Sutton, 7th ed,p. 790Dilatation and beading of main pancreatic duct and calcification is pathognomonic of chronic pancreatitis.Typical ERCP appearance include:1. String of pearls2. Chain of lakes3. Rat tail appearanceSome important radiological appearancesSigmoid volvulus # Bird of prey sign -# Bird beak sign# Omega sign # Bent inner tube sign # Coffee bean sign Carman meniscal signCole signCoiled spring signSterlin sign, Fuscher s signChiladiti sign - malignant gastric ulcer- duodenal ulcer- intussusceptions- TB caecum- colon b/w liver and diaphragm', 'role': 'assistant'}]