Question 2404
{"accessible":false,"alternatives":[{"id":11835,"text":"cholangitis"},{"id":11838,"text":"cholecystitis"},{"id":11836,"text":"choledocholithiasis"},{"id":11837,"text":"cholelithiasis"}],"archived":false,"correctAlternativeId":11837,"explanation":"\u003cp\u003eThe \u003ca title=\"Wall-echo-shadow sign (ultrasound)\" class=\"internal\" href=\"/articles/wall-echo-shadow-sign-ultrasound\"\u003e“wall-echo-shadow” sign\u003c/a\u003e occurs when the ultrasound beam encounters a gallbladder full of stones (cholelithiasis). It can also occur with a single large stone. At first glance, the gallbladder may not appear to be present, or may be mistaken for bowel, but this is because all the stones in the gallbladder are reflecting the sound beam and “shadowing out” most of the gallbladder. In this situation, all you can see is the near wall of the gallbladder, the irregular echoes of the stones, and then an acoustic shadow.\u003c/p\u003e","id":2404,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2404","nextQuestionPath":null,"relatedArticles":[{"id":17291,"title":"Cholecystitis","link":"/articles/cholecystitis?lang=us"},{"id":8059,"title":"Choledocholithiasis","link":"/articles/choledocholithiasis?lang=us"},{"id":20125,"title":"Gallstones","link":"/articles/gallstones-1?lang=us"},{"id":21822,"title":"Wall-echo-shadow sign (ultrasound)","link":"/articles/wall-echo-shadow-sign-ultrasound?lang=us"}],"alsoUsedIn":[{"id":1314,"kind":"Course","title":"2022 Virtual Conference Private Use - page 1314","link":"https://radiopaedia.org/courses/2022-virtual-conference-private-use/pages/1314"},{"id":1314,"kind":"Course","title":"X-ray \u0026 Ultrasound Lectures - page 1314","link":"https://radiopaedia.org/courses/xray-lectures/pages/1314"}],"stem":"\u003cp\u003eWhat does the “wall-echo-shadow” sign indicate?\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/2404"}],"attemptsPercentages":[{"alternativeId":"11836","percentage":12},{"alternativeId":"11835","percentage":4},{"alternativeId":"11838","percentage":15},{"alternativeId":"11837","percentage":69}],"promptToLogin":false,"questionManager":false,"articleId":"cholangitis"}