Ulcerative colitis is an inflammatory bowel disease in which the inner lining of the large intestine and rectum become inflamed. It is characterized by diarrhea, abdominal pain and blood in the stool.

Primary sclerosing cholangitis (PSC) is a chronic, progressive disease of the bile duct system. The bile duct system carries bile from the liver and gallbladder into the first part of the small ...