[Main variations of the extrahepatic biliary system and their application to the so-called "split-liver" transplantation technique]. / Principais variações do sistema biliar extra-hepático e sua aplicação na técnica de transplante de fígado chamada "split-liver".

Sixty fresh adult livers were obtained from cadavers together with celiac trunk, head of the pancreas and superior mesenteric artery. We have found a single right hepatic duct in 13(21.6%) of the cases and a multiple right hepatic duct in 47(78.3%). A single left hepatic duct was found in 3(5%) of the cases and a multiple left hepatic duct in 57(95%). A median hepatic duct was found in 18(30%) of the cases, out of this 2(3.3%) was multiple median hepatic duct.