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: Radiology
"Chain of lakes appearance" On ERCP is seen in 
Select and explain. 
A. Acute pancreatitis, B. Chronic pancreatitis, C. Pancreatic adenocarcinoma, D. Crohn's disease
B: Chronic pancreatitis
Answer: B: Chronic pancreatitis 
Explanation: Beaded appearance due to alternating dilatation and stenosis → Chain of lakes appearance or string of pearl appearance seen in chronic pancreatitis.