What is Cholangiocarcinoma?

Bile duct cancer, or cholangiocarcinoma, is a gastrointestinal cancer that originates in tube structures that transport bile from where it is made in the liver to where it is used to break down fats in the intestines.

The US National Cancer Institute estimates that approximately 8,000 new cases of bile duct cancer will be diagnosed each year.[1]

what is Cholangiocarcinoma
Cholangiocarcinoma can begin in the green ducts (at right) that collect bile being made in the liver, termed intrahepatic cholangiocarcinoma.  If the cancer originates in the ducts outside of the liver that deliver bile to the small intestine, then it is termed extrahepatic cholangiocarcinoma.

Intrahepatic cholangiocarcinoma makes up 10% of all cholangiocarcinomas, yet it is the second most common malignancy arising from the liver. 


[1] https://seer.cancer.gov/statfacts/html/livibd.html

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