title: Familial translocation t(6;20)(p21;p13) resulting in partial trisomy 6p and partial monosomy 20p: report of a new case and review of the literature.
abstract: Carriers of completely balanced chromosomal translocations have all necessary genetic information. Nevertheless, because of the possibility of maldistribution during gametogenesis, they are at increased risk for infertility, miscarriage, stillbirth or having a child with congenital anomalies including mental retardation. As postnatal clinical reports are infrequent, prediction of clinical course for specific unbalanced karyotypes diagnosed during pregnancy remains difficult. Here, we report the 6th case of partial trisomy 6p and partial monosomy 20p due to an unbalanced adjacent-1 segregation of the rare familial translocation t(6;20)(p21;p13). We give a thorough clinical description of the present case, demonstrating broad phenotypic overlap with the 5 previously published cases reviewed here, providing important data on postnatal outcome.
authors.affiliation: Department of Neonatology, Children's Hospital, Bonn, Germany.
authors.forename: A L
authors.initials: AL
authors.lastname: Berner
authors.forename: S
authors.initials: S
authors.lastname: Bağci
authors.forename: E
authors.initials: E
authors.lastname: Wohlleber
authors.forename: E
authors.initials: E
authors.lastname: Engels
authors.forename: A
authors.initials: A
authors.lastname: Müller
authors.forename: P
authors.initials: P
authors.lastname: Bartmann
authors.forename: R G
authors.initials: RG
authors.lastname: Weber
authors.forename: H
authors.initials: H
authors.lastname: Reutter
mesh_terms: D000015:Abnormalities, Multiple / Q000235:genetics / Q000473:pathology; D000328:Adult; D002871:Chromosome Banding; D002872:Chromosome Deletion; D020223:Chromosome Painting; D002890:Chromosomes, Human, Pair 20 / Q000235:genetics; D002896:Chromosomes, Human, Pair 6 / Q000235:genetics; D005260:Female; D006801:Humans; D007223:Infant; D007621:Karyotyping; D008297:Male; D010375:Pedigree; D010641:Phenotype; D011247:Pregnancy; D014178:Translocation, Genetic; D014314:Trisomy / Q000235:genetics*