Bile duct cancer, also known as cholangiocarcinoma, is a rare form of cancer that affects the bile ducts. Two bile ducts in the human body connect the liver and gallbladder to the small intestine.

Bile is a liquid produced by the liver that helps your body digest fats from the food you eat. It is stored in the gallbladder and empties into your intestines during digestion. You may have heard ...