title: [Idiopathic external hydrocephalus].
abstract: 5 male children who had idiopathic external hydrocephalus are described; all were all in the first year of life. Macrocephaly and hypotonia were present in all, as well as mild to moderate delay in language and gross motor development; cognition was normal. CT-scan showed in all enlarged subarachnoid spaces but normal or mildly dilated lateral ventricles. Macrocephaly was present in the fathers of 4 of the 5 families. In all cases the course of this condition was benign. There was clinical and roentgenological improvement between the ages of 2 and 2.5 years; the developmental delay resolved at about age 4, at which time the CT pattern had become normal.
authors.affiliation: Pediatric Dept., Rebecca Sieff Hospital, Safed.
authors.forename: D
authors.initials: D
authors.lastname: Segal-Kuperschmit
authors.forename: C
authors.initials: C
authors.lastname: Cozacov
authors.forename: A
authors.initials: A
authors.lastname: Luder
mesh_terms: D002658:Developmental Disabilities / Q000209:etiology; D005500:Follow-Up Studies; D006801:Humans; D006849:Hydrocephalus / Q000150:complications / Q000000981:diagnostic imaging; D007223:Infant; D008297:Male; D012886:Skull / Q000002:abnormalities; D014057:Tomography, X-Ray Computed