The intrahepatic cholangiocarcinoma was located in root of hepatic vein, which infiltrated the middle hepatic vein and the left hepatic vein. a Shows the location of tumor in artery phase. b Shows the relationship between tumor and MHV in transverse section. c Shows the relationships between tumor and MHV in coronal section. d The three-dimensional reconstruction of tumor and hepatic vein. MHV middle hepatic vein.