Synovial facet joint cyst causing extradural compression. Report of two cases.
D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009408:Nerve Compression Syndromes / Q000209:etiology*; D013122:Spinal Diseases / Q000150:complications; D013126:Spinal Nerve Roots; D013581:Synovial Cyst / Q000150:complications*