<prompt> Extraintestinal manifestations of Crohn disease include ALL EXCEPTUveitisMigratory polyarthritisSacroiliitisPericholangitis  <response>: Ans. d Severe bacterial infectionRef Gut liver 2010, 4 3: 338-344Uveitis and polyarthritis are common extra intestinal manifestation of crohns disease.Sacroiliitis is more common in crohns disease 21 as compared to U.C 12.2 especially in patients with upper CaI or personal involvement.Pre cholangitis is common extra intestinal manifestation of U.C. 