title: Primary extra-skeletal Ewing's sarcoma mimicking a disc protrusion.
abstract: One of the rarest cases of primary epidural neoplasm is a soft tissue sarcoma histologically similar to Ewing's sarcoma of the bone. In the literature only eleven cases of such an extra-skeletal Ewing's sarcoma have been described. The authors report an additional case presenting as a disc protrusion in a young male. The authors include some diagnostic, prognostic and nosologic remarks about this condition.
mesh_terms: D000293:Adolescent; D003937:Diagnosis, Differential; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000175:diagnosis*; D008159:Lumbar Vertebrae; D008297:Male; D012512:Sarcoma, Ewing / Q000175:diagnosis*; D013125:Spinal Neoplasms / Q000175:diagnosis*