Tags: Disease.
Primary sclerosing cholangitis (PSC) is a disease of the bile ducts that causes inflammation and subsequent obstruction of bile ducts both at an intrahepatic (inside the liver) and extrahepatic (outside the liver) level. The inflammation impedes the flow of bile to the gut which can ultimately lead to cirrhosis of the liver liver failure and liver cancer. The underlying cause of the inflammation is believed to be autoimmunity; and more than 80% of those with PSC have ulcerative colitis.