title: Nerve-root entrapment in "traumatic" extradural arachnoid cyst.
mesh_terms: D000328:Adult; D003560:Cysts / Q000150:complications*; D005260:Female; D006801:Humans; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging; D009192:Myelography; D009408:Nerve Compression Syndromes / Q000209:etiology; D010523:Peripheral Nervous System Diseases / Q000209:etiology*; D013126:Spinal Nerve Roots