Question 1474
{"accessible":false,"alternatives":[{"id":7361,"text":"complicated endoscopic resection of a descending colon polyp"},{"id":7362,"text":"complicated endoscopic retrograde cholangiopancreatography (ERCP)"},{"id":7363,"text":"gastric perforation due to peptic ulcer disease"},{"id":7364,"text":"laparoscopic nephrectomy"},{"id":7365,"text":"rectal perforation due to foreign body"}],"archived":false,"correctAlternativeId":7363,"explanation":"\u003cp\u003ePerforation of a retroperitoneal portion of the gastrointestinal tract can cause a\u0026nbsp;pneumoretroperitoneum; this includes the 2nd to 4th parts of the duodenum, ascending and descending colon. Perforation of extraperitoneal parts of the bowel, such as the rectum can also lead to\u0026nbsp;pneumoretroperitoneum. The barriers between compartment are not impenetrable and gas can cross between them; hence a large volume pneumoperitoneum can also lead to\u0026nbsp;pneumoretroperitoneum.\u003c/p\u003e","id":1474,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2571","nextQuestionPath":"/articles/pneumoperitoneum/questions/467","relatedArticles":[{"id":6167,"title":"Pneumoretroperitoneum","link":"/articles/pneumoretroperitoneum?lang=us"},{"id":22477,"title":"Retroperitoneal organs (mnemonic)","link":"/articles/retroperitoneal-organs-mnemonic?lang=us"}],"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\u003eWhich of the following is more likely to cause a pneumoperitoneum rather than a pneumoretroperitoneum?\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/1474"}],"attemptsPercentages":[{"alternativeId":"7361","percentage":9},{"alternativeId":"7362","percentage":9},{"alternativeId":"7364","percentage":3},{"alternativeId":"7363","percentage":75},{"alternativeId":"7365","percentage":4}],"promptToLogin":false,"questionManager":false,"articleId":"pneumoperitoneum"}