title: Unusual chromosome 20 anomaly arising "de novo" to give dic(20)qs.
abstract: An unusual anomaly is reported involving the long arm of chromosome 20. The appropriate cytogenetic techniques showed it to be a de novo dic(20)qs.
authors.affiliation: Genética Humana, Centro de Investigaciones Biológicas (C.S.I.C.), Madrid, Spain.
authors.forename: D
authors.initials: D
authors.lastname: Pimentel
authors.forename: P
authors.initials: P
authors.lastname: Alonso
authors.forename: J A
authors.initials: JA
authors.lastname: Abrisqueta
mesh_terms: D000328:Adult; D002478:Cells, Cultured; D002648:Child; D002869:Chromosome Aberrations; D002871:Chromosome Banding; D025063:Chromosome Disorders; D002890:Chromosomes, Human, Pair 20; D005260:Female; D006801:Humans; D008214:Lymphocytes / Q000166:cytology; D008297:Male; D009697:Nucleolus Organizer Region / Q000648:ultrastructure