Ewing's sarcoma. Magnetic resonance imaging (MRI) scan of the pelvis and thighs of a 17 year old boy with Ewing's sarcoma, a type of bone cancer. The tumour, which consists of soft tissue, is the white oval just left of centre. It is distorting the bladder (upper right of tumour). The cancer originated in the right pelvic bone. Ewing's sarcoma is most prevalent in teenage boys. Treatment is with surgical removal of the tumour, where possible, and chemotherapy and radiation therapy.
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