“…Obstructive jaundice in patients with ulcerative colitis is usually due to pericholangitis, which develops without blockage to the major bile ducts, and may or may not be accompanied by cirrhosis (Kleckner, Stauffer, Bargen, and Dockerty, 1952;Boden, Rankin, Goulston, and Morrow, 1959;Stauffer, Sauer, Dearing, and Baggenstoss, 1965). The main hepatic lesion in such cases consists of portal and periportal inflammation in which, it has been suggested, the inflammatory changes may originate in either the terminal radicles of the portal vein or the biliary epithelium (Boden et al, 1959;McCarthy and Read, 1962).…”