Cholangiocarcinoma is a type of cancer that affects the bile ducts. It can form:
In the liver ("intrahepatic")
Just outside of the liver ("perihilar")
Closer to where bile enters the small intestine ("distal" or "extrahepatic")
Classifications defined by: American Joint Committee on Cancer (AJCC) Cancer Staging Manual, 8th Edition, Amin MB (Ed), Chicago: Springer Science+Business Media, LLC, 2017.
