A Case of Extraskeletal Ewing Sarcoma of Retroperitoneum / 대한소아혈액종양학회지

ABSTRACT

Ewing sarcoma is an uncommon bone malignancy of childhood. Although Ewing sarcoma is mostly a tumor of bone, it may also arise from soft tissues (extraskeletal Ewing sarcoma). We report a case of extraskeletal Ewing sarcoma that arose in the retroperitoneum of a 18-month-old girl and presented with right leg pain and gait disturbance. A brief review of related literatures was also made.