Sacral extradural cysts. A rare cause of low backache and sciatica.
D000328:Adult; D001416:Back Pain / Q000209:etiology*; D001859:Bone Neoplasms / Q000175:diagnosis; D001862:Bone Resorption / Q000209:etiology; D003560:Cysts / Q000150:complications / Q000151:congenital* / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000175:diagnosis; D007796:Laminectomy; D008297:Male; D008875:Middle Aged; D009192:Myelography; D009408:Nerve Compression Syndromes / Q000209:etiology; D012447:Sacrum / Q000000981:diagnostic imaging / Q000601:surgery; D012585:Sciatica / Q000209:etiology*; D013117:Spinal Cord Compression / Q000209:etiology; D013118:Spinal Cord Diseases / Q000150:complications / Q000151:congenital*; D016135:Spinal Dysraphism / Q000150:complications; D013126:Spinal Nerve Roots; D014056:Tomography, X-Ray