Fig. 1

a Thickened wall of gallbladder by enhanced CT. b Thickened wall of common bile duct by enhanced CT. c Thickened wall of common bile duct by enhanced CT. d Suspected gallbladder cancer during operation. e Stump of the pancreas and hepatic duct. f Hepatic pedicle of segment IVb. g Ventral portal vein of segment V. h Dorsal portal vein of segment V. i Pancreaticojejunostomy. j Cholangiojejunostomy. k Pathology of gallbladder (× 100). l pathology of a common bile duct (× 100)