Question 1756
{"accessible":true,"alternatives":[{"id":8721,"text":"Andersson lesions"},{"id":8722,"text":"bamboo spine"},{"id":8723,"text":"infectious spondylodiscitis"},{"id":8724,"text":"Romanus lesions"}],"archived":false,"correctAlternativeId":8721,"explanation":"\u003cp\u003eThere is an abnormal high signal intensity of hemi-spherical shape involving the central portion of both vertebral halves and discs of T11-T12, T12-L1, L3-L4 and L4-L5. These discovertebral abnormalities are called Andersson lesions, considered an inflammatory\u0026nbsp;complication\u0026nbsp;or non-infectious spondylodiscitis. Andersson lesions are seen in about 8% of patients with\u0026nbsp;ankylosing spondylitis.\u003c/p\u003e\u003cp\u003eThere is no consensus regarding the management of these discovertebral lesions, or when surgical intervention is appropriate. Surgical instrumentation and fusion is advised for those who do not respond to conservative treatment.\u003c/p\u003e\u003cp\u003e\u0026nbsp;\u003c/p\u003e","id":1756,"imageUrl":"https://prod-images-static.radiopaedia.org/multiple_choice_questions/256/image-2_big_gallery.jpeg","imageAttribution":{"kind":"case","rID":81878},"imageAttributionCaseInfo":{"title":"Ankylosing spondylitis - Andersson lesion","contributor_name":"Ammar Haouimi","contributor_param":"ammar-haouimi","case_rid":81878,"case_param":"ankylosing-spondylitis-andersson-lesion-2"},"firstQuestionPath":"/questions/2188","nextQuestionPath":null,"relatedArticles":[{"id":4966,"title":"Spondylodiscitis","link":"/articles/spondylodiscitis?lang=us"},{"id":14405,"title":"Andersson lesion","link":"/articles/andersson-lesion-1?lang=us"},{"id":904,"title":"Ankylosing spondylitis","link":"/articles/ankylosing-spondylitis-1?lang=us"},{"id":35486,"title":"Romanus lesion (vertebral bodies)","link":"/articles/romanus-lesion-vertebral-bodies?lang=us"}],"alsoUsedIn":[],"stem":"\u003cp\u003eA 40 year-old male, known ankylosing spondylitis under follow-up, presented with severe low back pain. Which complication is shown on this sagittal STIR sequence ?\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/1756"}],"attemptsPercentages":[{"alternativeId":"8724","percentage":11},{"alternativeId":"8721","percentage":63},{"alternativeId":"8722","percentage":5},{"alternativeId":"8723","percentage":20}],"promptToLogin":false,"questionManager":false,"articleId":"bamboo-spine-ankylosing-spondylitis"}