Ursodiol use appears to be associated with a lower frequency of colonic dysplasia in patients with ulcerative colitis and primary sclerosing cholangitis. A randomized trial investigating the chemoprotective effect of ursodiol in patients with ulcerative colitis may be warranted.

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Patients with hemochromatosis and serum ferritin levels less than 1000 microg/L are unlikely to have cirrhosis. Liver biopsy to screen for cirrhosis may be unnecessary in such patients, regardless of age or serum liver enzyme levels.