Question 1654
{"accessible":false,"alternatives":[{"id":8233,"text":"colonic involvement may be predominant"},{"id":8229,"text":"fibrofatty proliferation "},{"id":8232,"text":"perianal involvement"},{"id":8231,"text":"skip lesions typical"},{"id":8230,"text":"small bowel involved in up to 70-80%"}],"archived":false,"correctAlternativeId":8233,"explanation":"\u003cp\u003eIn \u003ca href=\"/articles/crohn-disease-1\"\u003eCrohn disease\u003c/a\u003e the small bowel involvement is predominant up to 70-80%\u0026nbsp;and the terminal ileum is usually affected first whereas the large bowel is involved in 15-20% of cases.\u003c/p\u003e\u003cp\u003eWhen the large bowel involvement\u0026nbsp;is the predominant feature other diseases should be discussed:\u003c/p\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https://radiopaedia.org/articles/ulcerative-colitis?lang=gb\"\u003eulcerative colitis\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"https://radiopaedia.org/articles/colonic-diverticulitis-1?lang=gb\"\u003eacute diverticulitis\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"https://radiopaedia.org/articles/ischaemic-colitis?lang=gb\"\u003eischaemic colitis\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"https://radiopaedia.org/articles/clostridioides-difficile-colitis?lang=gb\"\u003epseudomembranous colitis\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"https://radiopaedia.org/articles/infectious-colitis?lang=gb\"\u003einfectious colitis\u003c/a\u003e\u003c/li\u003e\n\u003c/ul\u003e","id":1654,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2682","nextQuestionPath":"/articles/crohn-disease-1/questions/1649","relatedArticles":[{"id":1451,"title":"Hinchey classification of acute diverticulitis","link":"/articles/hinchey-classification-of-acute-diverticulitis?lang=gb"},{"id":6829,"title":"Ulcerative colitis","link":"/articles/ulcerative-colitis?lang=gb"},{"id":6774,"title":"Clostridioides difficile colitis","link":"/articles/clostridioides-difficile-colitis?lang=gb"},{"id":31226,"title":"Infectious colitis","link":"/articles/infectious-colitis?lang=gb"}],"alsoUsedIn":[],"stem":"\u003cp\u003eWhich of the following features is \u003cstrong\u003eNOT\u003c/strong\u003e common in Crohn disease?\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/1654"}],"attemptsPercentages":[{"alternativeId":"8230","percentage":11},{"alternativeId":"8229","percentage":8},{"alternativeId":"8233","percentage":64},{"alternativeId":"8231","percentage":2},{"alternativeId":"8232","percentage":15}],"promptToLogin":false,"questionManager":false,"articleId":"crohn-disease"}