Familial interstitial deletion of the short arm of chromosome 4 (p15.33-p16.3) characterized by molecular cytogenetic analysis.
Am J Med Genet A
; 146A(7): 899-903, 2008 Apr 01.
Article
em En
| MEDLINE
| ID: mdl-18302281
ABSTRACT
This 15-month boy was expressed at the cytogenetic laboratory because of psychomotor development delay. He was tall and had plagiocephaly, micrognathia, high nasal bridge, anteverted nostrils and pectus excavatum. A 46,XY,del(4)(p16.1p16.3) karyotype was found using high-resolution R-banding technique. FISH studies using the LSI Wolf-Hirschhorn dual color 4p16.3 and the TelVysion 4p probes showed no deletion. Using BACs, the distal breakpoint was located in 4p16.3, between RP11-165K4 and RP11-717M10 and the proximal breakpoint in 4p15.33, between RP11-74M11 and RP11-1J7; therefore, approximately 7.96 Mb of the short arm were deleted. The maternal karyotype showed the same deletion, but in a mosaic status. Two distinct phenotypes have been recognized on the basis of the chromosomal bands involved in 4p deletion the Wolf-Hirschhorn syndrome (WHS) and a proximal 4p deletion syndrome (4p15.2-p15.32). Our observation confirms that the basic WHS phenotype maps distally to this region.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Cromossomos Humanos Par 4
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Deleção Cromossômica
Limite:
Humans
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Infant
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Male
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article