Figure 56-1 A, Segmental liver anatomy. Each segment is supplied by a portal pedicle consisting of the hepatic artery, portal vein branch, and bile duct. B, Segments V to VII are frequently used for adult-to-adult living donor transplantation. (Redrawn from Renz JF, Yersiz H, Farmer DG, et al: Changing faces of liver transplantation: Partial-liver grafts for adults. Hepatobil Pancreat Surg 10:31–44, 2003.)