[Abnormalities of the common bile duct and Vater's papilla in various forms of duodenal atresia].

Associated anomalies are often found in newborn with duodenal obstruction. Anomalies of the biliary tract are of special interest. Malformations of the terminal common bile duct and the papilla of Vater are the most common ones. The recognition of the possible anatomical variations is most important to avoid inadvertent injuries in the correction of duodenal obstruction.