Question 1856
{"accessible":true,"alternatives":[{"id":9218,"text":"absent rectal gas"},{"id":9219,"text":"coffee bean sign"},{"id":9220,"text":"Frimann-Dahl sign"},{"id":9221,"text":"liver overlap sign"},{"id":9222,"text":"northern exposure sign"}],"archived":false,"correctAlternativeId":9219,"explanation":"\u003cp\u003eThis plain abdominal radiograph shows a typical appearance of a \u003ca href=\"/articles/coffee-bean-sign-sigmoid-colon\" title=\"Coffee-bean sign (sigmoid colon)\"\u003ecoffee-bean sign\u003c/a\u003e also known as kidney bean sign or \u003ca href=\"/articles/coffee-bean-sign-sigmoid-colon\" title=\"Bent inner tube sign\"\u003ebent inner tube sign\u003c/a\u003e which is seen on plain abdominal radiograph in patient with \u003ca href=\"/articles/sigmoid-volvulus\" title=\"Sigmoid volvulus\"\u003esigmoid volvulus\u003c/a\u003e.\u003c/p\u003e\u003cp\u003e\u003ca href=\"/articles/northern-exposure-sign-sigmoid-volvulus\" title=\"Northern exposure sign (sigmoid volvulus)\"\u003eNorthern exposure sign\u003c/a\u003e is seen on\u0026nbsp;supine abdominal radiograph,\u0026nbsp;the apex of the sigmoid volvulus is seen above (cranial to) the transverse colon and considered as\u0026nbsp;a high\u0026nbsp;specificity\u0026nbsp;sign in\u0026nbsp;sigmoid volvulus.\u003c/p\u003e\u003cp\u003e\u003ca href=\"/articles/frimann-dahl-sign-1\" title=\"Frimann-Dahl sign\"\u003eFrimann-Dahl sign\u003c/a\u003e\u0026nbsp;is seen on an plain abdominal radiograph as three dense lines, representing the sigmoid walls, converging to the site of obstruction in\u0026nbsp;\u003ca href=\"https://radiopaedia.org/articles/sigmoid-volvulus?lang=gb\"\u003esigmoid volvulus\u003c/a\u003e\u0026nbsp;and associated with empty rectal gas.\u003c/p\u003e\u003cp\u003e\u003ca href=\"/articles/liver-overlap-sign-sigmoid-volvulus\" title=\"Liver overlap sign (sigmoid volvulus)\"\u003eLiver overlap sign\u0026nbsp;\u003c/a\u003eusually seen on abdominal radiograph\u0026nbsp;in\u0026nbsp;\u003ca href=\"https://radiopaedia.org/articles/sigmoid-volvulus?lang=gb\"\u003esigmoid volvulus\u003c/a\u003e\u0026nbsp;wherein the sigmoid loop is seen, ascending to the right upper quadrant and projecting over the liver shadow.\u003c/p\u003e","id":1856,"imageUrl":"https://prod-images-static.radiopaedia.org/multiple_choice_questions/339/sigmoid-volvulus_big_gallery.jpeg","imageAttribution":{"kind":"case","rID":10633},"imageAttributionCaseInfo":{"title":"Sigmoid volvulus","contributor_name":"Wael Nemattalla","contributor_param":"waelnematt","case_rid":10633,"case_param":"sigmoid-volvulus"},"firstQuestionPath":"/questions/2648","nextQuestionPath":"/articles/sigmoid-volvulus/questions/1070","relatedArticles":[{"id":1145,"title":"Coffee bean sign (sigmoid colon)","link":"/articles/coffee-bean-sign-sigmoid-colon-1?lang=us"},{"id":1145,"title":"Coffee bean sign (sigmoid colon)","link":"/articles/coffee-bean-sign-sigmoid-colon-1?lang=us"},{"id":40965,"title":"Frimann-Dahl sign","link":"/articles/frimann-dahl-sign-1?lang=us"},{"id":35066,"title":"Northern exposure sign (sigmoid volvulus)","link":"/articles/northern-exposure-sign-sigmoid-volvulus?lang=us"},{"id":60286,"title":"Liver overlap sign (sigmoid volvulus)","link":"/articles/liver-overlap-sign-sigmoid-volvulus?lang=us"}],"alsoUsedIn":[],"stem":"\u003cp\u003eWhich of the following signs of sigmoid volvulus is shown on this plain abdominal radiograph?\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/1856"}],"attemptsPercentages":[{"alternativeId":"9221","percentage":0},{"alternativeId":"9218","percentage":1},{"alternativeId":"9219","percentage":90},{"alternativeId":"9222","percentage":3},{"alternativeId":"9220","percentage":6}],"promptToLogin":false,"questionManager":false,"articleId":"sigmoid-volvulus"}