Question 2225
{"accessible":false,"alternatives":[{"id":11018,"text":"absence of any bone matrix"},{"id":11019,"text":"lamellated periosteal reaction"},{"id":11020,"text":"metaphyseal location"},{"id":11021,"text":"pathological fracture "},{"id":11022,"text":"permeative appearance"}],"archived":false,"correctAlternativeId":11020,"explanation":"\u003cp\u003eEwing\u0026nbsp;sarcomas tend to occur more in the diaphysis while osteosarcomas\u0026nbsp;usually develop near the\u0026nbsp;metaphysis, however there is certainly a large amount of overlap between the two. Absence of any bone matrix, lamellated periosteal reaction and a permeative appearance are more commonly seen\u0026nbsp;in Ewing\u0026nbsp;sarcoma than in osteosarcoma, but again there is significant overlap. Pathological fracture may occur in either.\u0026nbsp; \u0026nbsp;\u0026nbsp;\u003c/p\u003e","id":2225,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2578","nextQuestionPath":"/articles/ewing-sarcoma/questions/1115","relatedArticles":[{"id":1170,"title":"Osteosarcoma","link":"/articles/osteosarcoma?lang=us"}],"alsoUsedIn":[{"id":1119,"kind":"RestrictedPage","title":"Page 1119 (in no courses)","link":"https://radiopaedia.org/admin/restricted_pages/1119"},{"id":2086,"kind":"Course","title":"2024 Virtual Conference Private Use - page 2086","link":"https://radiopaedia.org/courses/2024-virtual-conference-private-use/pages/2086"},{"id":2086,"kind":"Course","title":"X-ray Interpretation: Bone Lesions Peer Review - page 2086","link":"https://radiopaedia.org/courses/x-ray-interpretation-bone-lesions-peer-review/pages/2086"},{"id":2086,"kind":"Course","title":"X-ray Interpretation: Bone Lesions - page 2086","link":"https://radiopaedia.org/courses/x-ray-interpretation-bone-lesions/pages/2086"}],"stem":"\u003cp\u003eA 12-year-old boy has a lesion detected within his femur. Which of the following would most favor osteosarcoma over Ewing sarcoma?\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/2225"}],"attemptsPercentages":[{"alternativeId":"11019","percentage":9},{"alternativeId":"11020","percentage":68},{"alternativeId":"11018","percentage":6},{"alternativeId":"11021","percentage":7},{"alternativeId":"11022","percentage":10}],"promptToLogin":false,"questionManager":false,"articleId":"ewing-sarcoma"}