Choledochal cyst, when associated with anomalous pancreatobiliary drainage, may cause pancreatitis. As seen in this case, chronic calcific pancreatitis involving uncinate process is seen.

As this case shows fusiform dilatation of common bile duct, it may be classified as Type I choledochal cyst, in spite of intrahepatic biliary dilatation, which may be due to anomalous pancreaticobiliary drainage.

However, differentials like distal stricture of common bile duct or any occult ampullary mass exist. Patient could not be followed up, and final comment regarding biliary anomaly remains unclear.