Cholangitis, Sclerosing

**Definition:** Chronic inflammatory disease of the BILIARY TRACT. It is characterized by fibrosis and hardening of the intrahepatic and extrahepatic biliary ductal systems leading to bile duct strictures, CHOLESTASIS, and eventual BILIARY CIRRHOSIS.

**Tree numbers:** - C06.130.120.200.110

**Synonyms:** - Cholangiitis, Sclerosing - Sclerosing Cholangitis