Ewing's sarcoma differential diagnosis


 * Assistant Editor(s)-In-Chief: Michael Maddaleni, B.S.

Similar presentation
Other entities that may have a similar radiologic presentation include osteomyelitis, osteosarcoma (especially telangiectatic osteosarcoma) and eosinophilic granuloma. Soft tissue neoplasms such as malignant fibrous histiocytoma that erode into adjacent bone may also have a similar appearance.

Common Ewing's sarcoma findings
Ewing's sarcomas are commonly found in the trunk and long bones. Therefore, they are commonly found in the pelvic region, clavicles, scapulas, vertebral column, and ribs. The most common bone for this to occur in is the femur, followed by the humerus and tibia. Ewing's sarcoma tends to arise from the diaphysis whereas in osteosarcoma it tends to arise from the metaphysis. It should also be noted that Ewing's sarcoma has a strong potential to metastasize.