Question 2081
{"accessible":false,"alternatives":[{"id":10333,"text":"backwash ileitis"},{"id":10330,"text":"continuous bowel involvement "},{"id":10331,"text":"mesenteric creeping fat"},{"id":10334,"text":"rectal involvement"},{"id":10332,"text":"widening of presacral space"}],"archived":false,"correctAlternativeId":10331,"explanation":"\u003cp\u003eMesenteric creeping fat is a feature of chronic Crohn\u0026nbsp;disease. It is not seen in cases of ulcerative colitis as the small bowel is not involved.\u003c/p\u003e\u003cp\u003eBowel involvement is continuous in cases of ulcerative colitis; whereas, discontinuous bowel involvement/skip lesions are seen in Crohn\u0026nbsp;disease.\u003c/p\u003e\u003cp\u003e\u003ca href=\"/articles/widening-of-presacral-space\"\u003eWidening of presacral space\u003c/a\u003e is a feature of chronic ulcerative colitis due to\u0026nbsp;extramural deposition of fat which\u0026nbsp;leads to the thickening of the perirectal fat and\u0026nbsp;\u003ca href=\"https://radiopaedia.org/articles/widened-presacral-space?lang=gb\"\u003ewidening of the presacral space\u003c/a\u003e.\u003c/p\u003e\u003cp\u003e\u003ca href=\"/articles/backwash-ileitis\"\u003eBackwash ileitis\u003c/a\u003e is seen in patients with\u0026nbsp;\u003ca href=\"https://radiopaedia.org/articles/ulcerative-colitis?lang=gb\"\u003eulcerative colitis\u003c/a\u003e\u0026nbsp;where the entire\u0026nbsp;\u003ca href=\"https://radiopaedia.org/articles/colon?lang=gb\"\u003ecolon\u003c/a\u003e\u0026nbsp;is involved. In such cases the\u0026nbsp;\u003ca href=\"https://radiopaedia.org/articles/terminal-ileum?lang=gb\"\u003eterminal ileum\u003c/a\u003e\u0026nbsp;is edematous.\u003c/p\u003e","id":2081,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2364","nextQuestionPath":"/articles/crohn-disease-vs-ulcerative-colitis-1/questions/1552","relatedArticles":[{"id":6829,"title":"Ulcerative colitis","link":"/articles/ulcerative-colitis?lang=us"},{"id":6791,"title":"Crohn disease","link":"/articles/crohn-disease-1?lang=us"}],"alsoUsedIn":[{"id":889,"kind":"Course","title":"2021 Virtual Conference Private Use - page 889","link":"https://radiopaedia.org/courses/2021-virtual-conference-private-use/pages/889"},{"id":889,"kind":"Course","title":"Radiopaedia 2021 - isoCME - page 889","link":"https://radiopaedia.org/courses/radiopaedia-2021-isocme/pages/889"}],"stem":"\u003cp\u003eAll of the following are features more typical of ulcerative colitis than Crohn\u0026nbsp;disease,\u0026nbsp;\u003cstrong\u003eEXCEPT:\u003c/strong\u003e\u003c/p\u003e","menuLinks":[{"text":"Report problem with question","url":"https://docs.google.com/forms/d/e/1FAIpQLSfO3soWYhOjJ7yErSysyCe5V4A1CqW7WK3rDA7MtAkecMGqNw/viewform?entry.1624461248\u0026entry.553583435=https://radiopaedia.org/questions/2081"}],"attemptsPercentages":[{"alternativeId":"10331","percentage":50},{"alternativeId":"10330","percentage":8},{"alternativeId":"10332","percentage":10},{"alternativeId":"10334","percentage":7},{"alternativeId":"10333","percentage":24}],"promptToLogin":false,"questionManager":false,"articleId":"crohn-disease-vs-ulcerative-colitis"}