Fig. 10.

Choledochal cyst with anomalous union of pancreaticobile duct (Komi IA, Todani IC) combined cholangiocarcinoma and gallbladder cancer with liver metastasis.

A-C. MR cholangiopancreatography images (A, B) show cystic dilatation of common bile duct, however, proximal common hepatic duct and intrahepatic duct show normal caliber. Additionally, common bile duct joined with pancreatic duct at right angle (arrow). CT image (C) shows saccular dilatation of common bile duct with enhancing wall thickening in proximal region of choledochal cyst (arrow) and gallbladder (arrowheads). In addition, metastatic lesions are present in liver and conglomerated lymph nodes at aortocaval and left paraaortic regions.