{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,21]],"date-time":"2026-03-21T01:19:47Z","timestamp":1774055987916,"version":"3.50.1"},"reference-count":10,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T00:00:00Z","timestamp":1753833600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Med."],"abstract":"<jats:p>Extrahepatic biliary anomalies are rarely diagnosed. These anomalies are usually detected incidentally after investigating clinical findings in patients such as obstructive jaundice, pancreatitis, or biliary tract malignancies. In our study, we describe common bile duct duplication in a patient scheduled for palliative hepaticojejunostomy due to unresectable pancreatic cancer. We are presenting a case with type I common bile duct anomaly.<\/jats:p>","DOI":"10.3389\/fmed.2025.1584728","type":"journal-article","created":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T05:28:52Z","timestamp":1753853332000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Case Report: A rarely observed anomaly of the common bile duct\u2014common bile duct duplication"],"prefix":"10.3389","volume":"12","author":[{"given":"Mehlika","family":"Bilgi Kirmaci","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Emre","family":"Balli","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Murat","family":"Dayan\u00e7","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sezgin","family":"Yilmaz","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2025,7,30]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"676","DOI":"10.1067\/msy.2002.124025","article-title":"Double common bile duct: a case report and a review of the Japanese literature","volume":"131","author":"Yamashita","year":"2002","journal-title":"Surgery"},{"key":"ref2","doi-asserted-by":"publisher","first-page":"rjw064","DOI":"10.1093\/jscr\/rjw064","article-title":"Duplicated extrahepatic bile duct identified following cholecystectomy injury","author":"Hoepfner","year":"2016","journal-title":"J Surg Case Rep"},{"key":"ref3","doi-asserted-by":"publisher","first-page":"e150","DOI":"10.1259\/bjr\/50929809","article-title":"Duplication of the extrahepatic bile duct with abnormal union of the pancreaticobiliary ductal system revealed by MR cholangiopancreatography","volume":"80","author":"Choi","year":"2007","journal-title":"Br J Radiol"},{"key":"ref4","doi-asserted-by":"publisher","first-page":"51","DOI":"10.4103\/1319-3767.151231","article-title":"Common bile duct duplication: the more the murkier","volume":"21","author":"Sureka","year":"2015","journal-title":"Saudi J Gastroenterol"},{"key":"ref5","doi-asserted-by":"publisher","first-page":"380","DOI":"10.1007\/s10038-003-0041-3","article-title":"Complete absence of bile and pancreatic ducts in a newborn: a new entity of congenital anomaly in hepato-pancreatic development","volume":"48","author":"Nakamura","year":"2003","journal-title":"J Hum Gene"},{"key":"ref6","doi-asserted-by":"publisher","first-page":"343","DOI":"10.1002\/ajmg.a.20479","article-title":"Biliary tract malformations","author":"Knisely","year":"2003","journal-title":"Am J Med Genet A"},{"key":"ref7","doi-asserted-by":"publisher","first-page":"302","DOI":"10.1001\/archsurg.1972.04180030050012","article-title":"Anomalies of the biliary tree. 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