Question 2445
{"accessible":false,"alternatives":[{"id":12013,"text":"bony destruction"},{"id":12015,"text":"epidural mass"},{"id":12017,"text":"more than 20 percent loss of signal on in and out of phase imaging suggesting a large proportion of fat"},{"id":12014,"text":"MRI signal isointense to intervertebral disc"},{"id":12016,"text":"psoas muscle infiltration"}],"archived":false,"correctAlternativeId":12014,"explanation":"\u003cp\u003eA hernia is a protrusion of one structure into another via a point of\u0026nbsp;weakness. Similar to hernias elsewhere in the body (for example those containing bowel or fat),\u0026nbsp;there can be small weaknesses in a vertebral end plate\u0026nbsp;that result in herniation of the intervertebral disc into the vertebral body. As the disc itself makes up the herniated contents, it therefore shares the same signal characteristics as the intervertebral disc which has remained\u0026nbsp;in place.\u003c/p\u003e","id":2445,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2445","nextQuestionPath":null,"relatedArticles":[],"alsoUsedIn":[{"id":1347,"kind":"Course","title":"2022 Virtual Conference Private Use - page 1347","link":"https://radiopaedia.org/courses/2022-virtual-conference-private-use/pages/1347"},{"id":1200,"kind":"Course","title":"2022 Virtual Conference Private Use - page 1200","link":"https://radiopaedia.org/courses/2022-virtual-conference-private-use/pages/1200"},{"id":248,"kind":"LiveSchedule","title":"248","link":"https://radiopaedia.org/admin/live_schedules/248"},{"id":159,"kind":"LiveSchedule","title":"159","link":"https://radiopaedia.org/admin/live_schedules/159"},{"id":1280,"kind":"Course","title":"2022 Virtual Conference Private Use - page 1280","link":"https://radiopaedia.org/courses/2022-virtual-conference-private-use/pages/1280"},{"id":1280,"kind":"Course","title":"Musculoskeletal Lectures - page 1280","link":"https://radiopaedia.org/courses/musculoskeletal-lectures/pages/1280"}],"stem":"\u003cp\u003eWhat is a characteristic feature of\u0026nbsp;Schmorl nodes?\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/2445"}],"attemptsPercentages":[{"alternativeId":"12017","percentage":8},{"alternativeId":"12016","percentage":1},{"alternativeId":"12013","percentage":4},{"alternativeId":"12015","percentage":1},{"alternativeId":"12014","percentage":87}],"promptToLogin":false,"questionManager":false,"articleId":"schmorl-nodes"}