Question 1475
{"accessible":false,"alternatives":[{"id":7367,"text":"endoscopic retrograde cholangiopancreatography (ERCP)"},{"id":7368,"text":"gastric perforation due to peptic ulcer disease"},{"id":7369,"text":"laparoscopic appendectomy"},{"id":7370,"text":"sigmoid diverticular perforation"},{"id":7366,"text":"small bowel infarction"}],"archived":false,"correctAlternativeId":7367,"explanation":"\u003cp\u003ePerforation of any intraperitoneal portion of the gastrointestinal tract can cause a\u0026nbsp;pneumoperitoneum; this includes the stomach, 1st part of the duodenum, jejunum, ileum, transverse and sigmoid colon.\u0026nbsp;At ERCP, there may be inadvertent perforation of the 2nd part of the duodenum during sphincterotomy; the 2nd to 4th parts of the duodenum are retroperitoneal. 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":1475,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2571","nextQuestionPath":"/articles/pneumoperitoneum/questions/1474","relatedArticles":[{"id":6167,"title":"Pneumoretroperitoneum","link":"/articles/pneumoretroperitoneum?lang=us"},{"id":22477,"title":"Retroperitoneal organs (mnemonic)","link":"/articles/retroperitoneal-organs-mnemonic?lang=us"}],"alsoUsedIn":[],"stem":"\u003cp\u003eWhich of the following is more likely to cause a pneumoretroperitoneum rather than a\u0026nbsp;pneumoperitoneum?\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/1475"}],"attemptsPercentages":[{"alternativeId":"7370","percentage":18},{"alternativeId":"7366","percentage":4},{"alternativeId":"7368","percentage":7},{"alternativeId":"7367","percentage":65},{"alternativeId":"7369","percentage":6}],"promptToLogin":false,"questionManager":false,"articleId":"pneumoperitoneum"}