AUTHOR=Bilgi Kirmaci Mehlika , Balli Emre , Dayanç Murat , Yilmaz Sezgin TITLE=Case Report: A rarely observed anomaly of the common bile duct—common bile duct duplication JOURNAL=Frontiers in Medicine VOLUME=Volume 12 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2025.1584728 DOI=10.3389/fmed.2025.1584728 ISSN=2296-858X ABSTRACT=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.