Primary arachnoid cyst. (A review with five case reports).
D000293:Adolescent; D000368:Aged; D001927:Brain Diseases / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*; D003560:Cysts / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013346:Subarachnoid Space / Q000601:surgery*