Unusual presentation of Ewing sarcoma; a case report and literature review.

Unlabelled: Introduction and importance Ewing's sarcoma is an aggressive malignancy primarily affecting skeletal system in children and young adults.

Case Presentation: We report an unusual case of Ewing sarcoma in a 14-year-old boy with clinical and radiological features of rapid onset metachronous skeletal metastasis (within 4 weeks of diagnosis).

Clinical Discussion: Although the deterioration of symptoms was very rapid, it is unusual to note that in the presence of such widespread metastatic disease the lungs per se remained uninvolved.