Question 1471
{"accessible":false,"alternatives":[{"id":7346,"text":"cecum \u003c 3 cm, large bowel \u003c 6 cm, small bowel \u003c 9 cm"},{"id":7347,"text":"large bowel \u003c 3 cm, cecum \u003c 6 cm, small bowel \u003c 9 cm"},{"id":7348,"text":"large bowel \u003c 3 cm, small bowel \u003c 6 cm, cecum \u003c 9 cm"},{"id":7349,"text":"small bowel \u003c 3 cm, cecum \u003c 6 cm, large bowel \u003c 9 cm"},{"id":7350,"text":"small bowel \u003c 3 cm, large bowel \u003c 6 cm, cecum \u003c 9 cm"}],"archived":false,"correctAlternativeId":7350,"explanation":"\u003cp\u003eThe 3-6-9 rule is an aide memoire describing the normal maximum diameter of different parts of the bowel in centimeters; up to 3 cm for small bowel, up to 6\u0026nbsp;cm for large bowel, except for the cecum which is the most capacious part of the large bowel and can distend up to 9 cm. Above these dimensions, the bowel is considered to be dilated, and this may be due to obstruction or adynamic ileus.\u003c/p\u003e","id":1471,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/1471","nextQuestionPath":null,"relatedArticles":[],"alsoUsedIn":[{"id":191,"kind":"Course","title":"Approach to Abdominal X-rays","link":"https://radiopaedia.org/courses/approach-to-abdominal-x-rays"},{"id":583,"kind":"Course","title":"Lectures by Vikas Shah - page 583","link":"https://radiopaedia.org/courses/lectures-by-vikas-shah/pages/583"},{"id":583,"kind":"Course","title":"Radiopaedia 2020 - Lectures Only - page 583","link":"https://radiopaedia.org/courses/radiopaedia-2020-exclusive/pages/583"},{"id":583,"kind":"Course","title":"2020 Virtual Conference Private Use - page 583","link":"https://radiopaedia.org/courses/2020-virtual-conference-private-use/pages/583"},{"id":680,"kind":"Course","title":"Abdominal Emergency Radiology Course - page 680","link":"https://radiopaedia.org/courses/abdominal-emergency-radiology-course-online/pages/680"},{"id":680,"kind":"Course","title":"2020 Virtual Conference Private Use - page 680","link":"https://radiopaedia.org/courses/2020-virtual-conference-private-use/pages/680"}],"stem":"\u003cp\u003eAccording to the\u0026nbsp;3-6-9 rule, the normal caliber of bowel is:\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/1471"}],"attemptsPercentages":[{"alternativeId":"7349","percentage":6},{"alternativeId":"7346","percentage":1},{"alternativeId":"7350","percentage":91},{"alternativeId":"7347","percentage":0},{"alternativeId":"7348","percentage":1}],"promptToLogin":false,"questionManager":false,"articleId":"3-6-9-rule-bowel"}