Extrahepatic Bile Duct Cancer

Extrahepatic bile duct cancer is a rare disease in which cancer cells form in the ducts that are outside the liver. The extrahepatic bile duct is made up of two parts:

  • The common hepatic duct, which is also called the perihilar part of the extrahepatic duct.
  • The common bile duct, which is also called the distal part of the extrahepatic duct.

Risk factors for extrahepatic bile duct cancer include the following disorders:

  • Primary sclerosing cholangitis.
  • Chronic ulcerative colitis.
  • Choledochal cysts.
  • Infection with a Chinese liver fluke parasite.

Source: National Cancer Institute

 

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