Symptoms and causes

Symptoms

Signs and symptoms of cholangiocarcinoma include:

  • Yellowing of your skin and the whites of your eyes (jaundice)
  • Intensely itchy skin
  • White-colored stools
  • Fatigue
  • Abdominal pain
  • Unintended weight loss

When to see a doctor

See your doctor if you have persistent fatigue, abdominal pain, jaundice, or other signs and symptoms that bother you. He or she may refer you to a specialist in digestive diseases (gastroenterologist).

Causes

Cholangiocarcinoma occurs when cells in the bile ducts develop changes (mutations) in their DNA — the material that provides instructions for every chemical process in your body. DNA mutations cause changes in the instructions. One result is that cells may begin to grow out of control and eventually form a tumor — a mass of cancerous cells. It's not clear what causes the genetic mutations that lead to cancer.

Risk factors

Factors that may increase your risk of cholangiocarcinoma include:

  • Primary sclerosing cholangitis. This disease causes hardening and scarring of the bile ducts.
  • Chronic liver disease. Scarring of the liver caused by a history of chronic liver disease increases the risk of cholangiocarcinoma.
  • Bile duct problems present at birth. People born with a choledochal cyst, which causes dilated and irregular bile ducts, have an increased risk of cholangiocarcinoma.
  • A liver parasite. In areas of Southeast Asia, cholangiocarcinoma is associated with liver fluke infection, which can occur from eating raw or undercooked fish.
  • Older age. Cholangiocarcinoma occurs most often in adults over age 50.
  • Smoking. Smoking is associated with an increased risk of cholangiocarcinoma.
April 25, 2017
References
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