Fig. 2

Contrast-enhanced computed tomography findings (focused on portal vein). A Coronal view. Portal vein dilated in the hepatic hilus and bent and twisted while branching off. B, C Portal vein was lying ventral to the pancreas and dorsal to the duodenum. D Portal vein was lying ventral to the common bile duct. T tumor, RPV right portal vein, LPV left portal vein, D duodenum, PV portal vein, P pancreas, SMV superior mesenteric vein, CBD common bile duct