NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,780 terms related to cancer and medicine.

Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.

Klatskin tumor
(KLAT-skin TOO-mer)
Cancer that develops in cells that line the bile ducts in the liver, where the right and left ducts meet. It is a type of cholangiocarcinoma.

EnlargeKlatskin tumor; drawing shows cancer in the common hepatic duct, the area where the right and left hepatic duct meet. Also shown are the liver and gallbladder.

Klatskin tumor. A tumor that forms in the common hepatic duct, the area where the right and left hepatic duct meet.