Familial translocation resulting in Wolf-Hirschhorn syndrome in two related unbalanced individuals: clinical evaluation of a 39-year-old man with Wolf-Hirschhorn syndrome.
A chromosomal translocation between chromosomes 4 and 8 resulting in Wolf-Hirschhorn syndrome in 2 individuals has been traced through 4 generations of a family. Ascertainment of the family was through a newborn infant with evident Wolf-Hirschhorn syndrome who had an unbalanced chromosomal translocation [46,XY,-4,+der(4),t(4;8) (p15.32;p22)]. Discussion with the family documented a paternal great-uncle who also had a similar phenotype and profound mental retardation. Subsequently this individual was found to have the same unbalanced chromosome constitution as the propositus. The 39-year-old great-uncle is the oldest reported individual with the Wolf-Hirschhorn syndrome. The importance of chromosome evaluation of older individuals with mental retardation syndromes is emphasized.
Wheeler
P G
PG
Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis 46202-5251, USA.
Weaver
D D
DD
Palmer
C G
CG
D000015:Abnormalities, Multiple / Q000235:genetics*; D000328:Adult; D002872:Chromosome Deletion; D002894:Chromosomes, Human, Pair 4; D002898:Chromosomes, Human, Pair 8; D005145:Face / Q000002:abnormalities; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008607:Intellectual Disability / Q000235:genetics; D007621:Karyotyping; D008297:Male; D010375:Pedigree; D010641:Phenotype; D013577:Syndrome; D014178:Translocation, Genetic