title: Extradural lesion.
mesh_terms: D000293:Adolescent; D005260:Female; D006801:Humans; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging*; D009192:Myelography; D012512:Sarcoma, Ewing / Q000000981:diagnostic imaging*; D013125:Spinal Neoplasms / Q000000981:diagnostic imaging*