Surgery for communicating accessory bile duct: Two case reports and a review of the literature

Daisuke Koike, Nobutaka Tanaka, Yuhki Sakuraoka, Motoki Nagai, Yoshikuni Kawaguchi, Yukihiro Nomura

Research output: Contribution to journalArticlepeer-review


A communicating accessory bile duct (CABD) is a very rare and unique anomaly that makes a circuit of the biliary tree. We report 2 cases of CABD. A 58-year-old woman was found to have cancer of the head of the pancreas. Preoperative endoscopic retrograde cholangiopancreatography showed no anomaly of the biliary tree. Intraoperative findings revealed an accessory bile duct between the right hepatic duct and the cystic duct. A 36-year-old woman was found to have cholelithiasis. Cholecystectomy was performed to preserve an abnormal circuit of the CABD, which had been revealed on magnetic resonance cholangiopancreatography. By summarizing 36 previous case reports on CABD, we propose a new classification system of CABD as follows: type A, cystic duct type; type B, bile duct type; and type C, duplication type. Overall, 14 cases of type A, 20 cases of type B, and 2 cases of type C have been reported, including the present cases. In cholecystectomy for type A, resection of the circuit reduces the recurrence of cholelithiasis. In pancreaticoduodenectomy for type A and B, one can choose between one and two reconstructions of the extrahepatic duct.

Original languageEnglish
Pages (from-to)188-195
Number of pages8
JournalJapanese Journal of Gastroenterological Surgery
Issue number3
Publication statusPublished - 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Surgery
  • Gastroenterology


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