Ectopic drainage of the common bile duct.

Two patients are presented with ectopic drainage of the common bile duct, one entering the stomach and the second entering the first portion of the duodenum. They make the seventh patient with the common bile duct entering into the stomach and the 19 patients with anomalous drainage into the duodenum. The awareness of this and other biliary system anomalies is stressed to prevent damage to vital structures in this area. The theories explaining this anomalies are discussed.