title: Follow-up of adult males with chromosome 18p deletion.
abstract: The 18p- syndrome has been known for over 40 years, the first report being by de Grouchy et al. [Comptes Rendus Hebdomadaires Séances l'Acad Sci 256 (1963) 1028]. Mental retardation of varying severity is the most constant feature. Over 100 cases have been reported. The eldest patients have been 50 years [Hum Genet 63 (1983) 139; Clin Genet 2 (1971) 338]. Follow-up of two adult patients, then 22 and 42 years [Ann Génét 29 (1986) 107], now 42 and 62 years of age, is reported. Further case reports are required in order to better define the evolution of adult patients with the 18p- syndrome.
authors.affiliation: Center for Human Genetics, UZ Gasthuisberg, 49 Herestraat, 3000 Leuven, Belgium. Thomy.deRavel@uz.kuleuven.ac.be
authors.forename: Thomy J L
authors.initials: TJ
authors.lastname: de Ravel
authors.forename: Paul
authors.initials: P
authors.lastname: Thiry
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Fryns
mesh_terms: D000015:Abnormalities, Multiple / Q000235:genetics* / Q000473:pathology / Q000503:physiopathology; D000328:Adult; D002872:Chromosome Deletion; D002887:Chromosomes, Human, Pair 18 / Q000235:genetics*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008607:Intellectual Disability / Q000235:genetics* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D010641:Phenotype; D013577:Syndrome