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NCI Dictionary of Cancer Terms

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extrahepatic bile duct cancer  listen  (EK-struh-heh-PA-tik bile dukt KAN-ser)

  A rare cancer that forms in the part of the bile duct that is outside the liver. The bile duct is the tube that collects bile from the liver and joins a duct from the gallbladder to form the common bile duct, which carries bile into the small intestine when food is being digested.

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Anatomy of the extrahepatic bile duct; drawing shows the liver, right and left hepatic ducts, gallbladder, cystic duct, common hepatic duct (perihilar), common bile duct (distal), extrahepatic bile duct, small intestine, and pancreas. The inset shows the liver, bile ducts, gallbladder, pancreas, and small intestine.