FISTULA FORMATION BETWEEN THE COMMON BILE DUCT AND THE DUODENAL DIVERTICULUM : REPORT OF A CASE

Abstract

A 77-year-old woman was admitted to our hospital because of pneumobilia in a gastric cancer mass survey. Plain X-ray, abdominal US and CT taken after admission revealed pneumobilia. A fistulous communication between the lower common bile duct and the duodenal diverticulum just above the papilla was confirmed by ERCP and on hypotonic duodenography. Fistula formation between the biliary tree and the duodenal diverticulum is uncommon, and, to our knowledge, only 5 cases have been reported on the Japanese literature. This case may help elucidate the occurrence of biliary fistula to duodenal diverticulum.