Question 2010
{"accessible":false,"alternatives":[{"id":9999,"text":"absence of diverticula within segment"},{"id":10000,"text":"destroyed mucosal folds"},{"id":10001,"text":"pericolonic fat infiltration"},{"id":10002,"text":"segment length less than 10 cm"},{"id":10003,"text":"shouldered edges"}],"archived":false,"correctAlternativeId":9999,"explanation":"\u003cp\u003eAbsence of diverticula within the involved segment has a PPV of 0.95, with shouldered edges having a PPV of 0.75. The combination of absence of diverticula and presence of shouldering at either side of the mass leads to a high diagnostic accuracy (0.93). Segment length less than 10 cm has a PPV of 0.61 and destroyed mucosal folds has a PPV of 0.62. There is no difference in the presence of pericolonic fat infiltration between the two disease types.\u003c/p\u003e\u003cp\u003e\u0026nbsp;\u003c/p\u003e","id":2010,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2070","nextQuestionPath":"/articles/colonic-diverticulosis/questions/1873","relatedArticles":[{"id":1153,"title":"Colorectal cancer","link":"/articles/colorectal-cancer-1?lang=us"}],"alsoUsedIn":[{"id":980,"kind":"Course","title":"2021 Virtual Conference Private Use - page 980","link":"https://radiopaedia.org/courses/2021-virtual-conference-private-use/pages/980"},{"id":980,"kind":"Course","title":"2022 Virtual Conference Private Use - page 980","link":"https://radiopaedia.org/courses/2022-virtual-conference-private-use/pages/980"},{"id":970,"kind":"RestrictedPage","title":"Page 970 (in no courses)","link":"https://radiopaedia.org/admin/restricted_pages/970"},{"id":955,"kind":"RestrictedPage","title":"Page 955 (in no courses)","link":"https://radiopaedia.org/admin/restricted_pages/955"},{"id":1,"kind":"LiveSchedule","title":"1","link":"https://radiopaedia.org/admin/live_schedules/1"},{"id":8,"kind":"LiveSchedule","title":"8","link":"https://radiopaedia.org/admin/live_schedules/8"},{"id":904,"kind":"Course","title":"2021 Virtual Conference Private Use - page 904","link":"https://radiopaedia.org/courses/2021-virtual-conference-private-use/pages/904"},{"id":904,"kind":"Course","title":"CT \u0026 MRI Lectures - page 904","link":"https://radiopaedia.org/courses/ct-mri-lectures/pages/904"}],"stem":"\u003cp\u003eOn CT colonography, which of these signs has the highest positive predictive value for discriminating sigmoid adenocarcinoma from sigmoid diverticular 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/2010"}],"attemptsPercentages":[{"alternativeId":"10002","percentage":3},{"alternativeId":"10003","percentage":43},{"alternativeId":"10000","percentage":8},{"alternativeId":"10001","percentage":4},{"alternativeId":"9999","percentage":43}],"promptToLogin":false,"questionManager":false,"articleId":"colonic-diverticulosis"}