Slender tubes(bile ducts) in which the digestive fluid is carried, cancer that forms there is Cholangiocarcinoma [bile duct cancer]. Bile ducts connect the liver to the gallbladder and the small intestine.it is a very rare cancer that occurs mostly in people older than age 50, though it can occur at any age.
Factors that may increase your risk of cholangiocarcinoma include:
Primary sclerosing cholangitis.
Chronic liver disease.
Bile duct problems present at birth.
A liver fluke parasite infection.
Signs and symptoms of cholangiocarcinoma include: