Fig. 2

A representative case of the partially supraportal type. a Transverse MDCT images in early arterial phase and b three-dimensional arteriogram obtained in a 57-year-old woman with hilar cholangiocarcinoma. c Intraoperative photograph after left hepatectomy and caudate lobectomy with hilar lymph node dissection. RHA branched off A7 of the supraportal type before the bifurcation of A6 of the infraportal type and Aant. A6 and 7 supplied segment VI and VII, respectively