Adult-onset aqueductal stenosis.
D000328:Adult; D000367:Age Factors; D001927:Brain Diseases / Q000000981:diagnostic imaging* / Q000601:surgery; D002535:Cerebral Aqueduct / Q000000981:diagnostic imaging / Q000601:surgery; D002557:Cerebrospinal Fluid Shunts; D006801:Humans; D008297:Male; D011859:Radiography