Stenosis or atresia of the aqueduct of Sylvius as a cause of congenital hydrocephalus.
D000293:Adolescent; D000328:Adult; D001254:Astrocytoma / Q000175:diagnosis / Q000473:pathology; D001344:Autopsy; D001932:Brain Neoplasms / Q000175:diagnosis / Q000473:pathology; D002552:Cerebral Ventricles / Q000002:abnormalities* / Q000473:pathology; D000013:Congenital Abnormalities / Q000150:complications / Q000175:diagnosis / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans