Question 1661
{"accessible":true,"alternatives":[{"id":8265,"text":"pneumobilia"},{"id":8266,"text":"portal venous gas"},{"id":8267,"text":"patchy enhancement of liver"},{"id":8268,"text":"pneumoperitoneum"},{"id":8269,"text":"intramural bowel gas"}],"archived":false,"correctAlternativeId":8265,"explanation":"\u003cp\u003ePneumobilia is the accumulation of gas in the\u0026nbsp;biliary tree.\u0026nbsp;It is distinguished on from portal venous gas on the basis of branching pattern and difference in location; pneumobilia being central in location; whereas, portal venous gas is peripheral.\u003c/p\u003e\u003cp\u003eThe images presented\u0026nbsp;above show\u0026nbsp;a large pneumoperitoneum and gas in the wall of the entire small bowel.\u0026nbsp;Gas is also present within the mesenteric veins and extends into the hepatic portal veins.\u0026nbsp;Patchy enhancement of the liver is also noted.\u0026nbsp;\u003c/p\u003e\u003cp\u003e\u003c/p\u003e","id":1661,"imageUrl":"https://prod-images-static.radiopaedia.org/multiple_choice_questions/176/bowel_ischemia_big_gallery.jpeg","imageAttribution":{"kind":"case","rID":56066},"imageAttributionCaseInfo":{"title":"Small bowel infarction and perforation","contributor_name":"Vikas Shah","contributor_param":"vikasshah","case_rid":56066,"case_param":"small-bowel-infarction-and-perforation"},"firstQuestionPath":"/questions/2651","nextQuestionPath":null,"relatedArticles":[{"id":1900,"title":"Pneumobilia","link":"/articles/pneumobilia?lang=us"},{"id":6165,"title":"Pneumoperitoneum","link":"/articles/pneumoperitoneum?lang=us"},{"id":6168,"title":"Intramural bowel gas","link":"/articles/intramural-bowel-gas?lang=us"},{"id":13986,"title":"Pneumobilia vs portal venous gas (mnemonic)","link":"/articles/pneumobilia-vs-portal-venous-gas-mnemonic?lang=us"}],"alsoUsedIn":[],"stem":"\u003cp\u003eA 70-year-old man presents with complaints of vague abdominal discomfort for 2 days. Subsequently, he underwent a CT of the abdomen with contrast, which showed\u0026nbsp;small bowel ischemia.\u0026nbsp;CT axial and coronal images are presented that show\u0026nbsp;all of the following\u0026nbsp;findings \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/1661"}],"attemptsPercentages":[{"alternativeId":"8266","percentage":20},{"alternativeId":"8267","percentage":6},{"alternativeId":"8269","percentage":4},{"alternativeId":"8265","percentage":61},{"alternativeId":"8268","percentage":9}],"promptToLogin":false,"questionManager":false,"articleId":"portal-venous-gas"}