GI Radiology > Biliary > Bile Ducts > Congenital > Tract Anomalies


Biliary Tract Anomalies

  • Unknown etiology.
  • Anomalous junction of common biliary duct and pancreatic duct. Examples are shown in diagram below:

  • A long common channel may cause:
    • Reflux of pancreatic secretions into bile ducts.
    • Repeated reflux of pancreatic secretions leads to weakening of the bile duct wall.
    • This process is believed to be related to the formation of choledochal cysts.


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