title: Arachnoid cysts in a brother and sister.
abstract: We describe a brother and sister with microcephaly and mental retardation who were shown by cranial CT scan to have almost identical unilateral arachnoid cysts. The occurrence in sibs suggests the possibility of a genetic basis for at least some cases of arachnoid cysts.
authors.affiliation: Department of Pediatrics, University of Virginia Medical Center, Charlottesville.
authors.forename: W G
authors.initials: WG
authors.lastname: Wilson
authors.forename: K A
authors.initials: KA
authors.lastname: Deponte
authors.forename: J
authors.initials: J
authors.lastname: McIlhenny
authors.forename: F E
authors.initials: FE
authors.lastname: Dreifuss
mesh_terms: D000293:Adolescent; D001099:Arachnoid / Q000000981:diagnostic imaging; D001100:Arachnoiditis / Q000000981:diagnostic imaging / Q000235:genetics*; D002648:Child; D003560:Cysts / Q000000981:diagnostic imaging / Q000235:genetics*; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000235:genetics; D008297:Male; D008831:Microcephaly / Q000235:genetics; D014057:Tomography, X-Ray Computed