RESUMEN
Ewing's sarcoma, originating primarily in the spinal epidural space is exceptionally rare. There are only 6 case reports in English literature until 1986. We experienced a case of epidural Ewing's sarcoma originated in thoracic spinal canal at T6~T7 level with myelopathy. Initial neural decompression was very effective and complete recovery was achieved. But local recurrence occurred in relatively short follow up period(8 months). Subsequent radiotherapy showed us dramatic tumor regression and improvement of neurologic deficit. The problems that concerned in this tumor are its accurate diagnosis and appropriate therapeutic modality. We reviewed the literatures that deal with exceptional locations of Ewing's sarcoma and current therapeutic approaches with their outcomes.