[4 cases of arachnoid cyst with spinal symptoms].
D000328:Adult; D001099:Arachnoid; D003560:Cysts / Q000150:complications* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D013118:Spinal Cord Diseases / Q000000981:diagnostic imaging / Q000209:etiology*; D013120:Spinal Cord Neoplasms / Q000150:complications* / Q000601:surgery