Abstract
The relationship between the type of obstruction and the course of the hepatic artery, cystic artery, and portal vein was analysed in 121 cases of biliary atresia. An accurate sketch of the bile duct, courses of hepatic artery, cystic artery and portal vein was made at the time of operation. Each anatomical situation was compared with the postoperative bile excretion condition. The following results were obtained: 1. Various anatomical relationships between the bile ducts and the course of vessels were observed in biliary atresia. However, the rate of the variations found was almost the same as that found in the normal distribution. 2. Differences in the type of vessel course positions were observed according to the type of biliary atresia. 3. The rate of the active bile excretion after operation was different not only according to the type of the obstruction, but also according to the anatomical positions of the bile ducts and the vessels.
