Smith-Magenis syndrome: a new contiguous gene syndrome. Report of three new cases.

AUTOR(ES)

Moncla, A

RESUMO

Interstitial deletion of the short arm of chromosome 17 was detected in three patients. They all had a similar phenotype with mental retardation, behavioural problems, facial dysmorphism, brachycephaly, a broad face with a flat midface, and short and broad hands. All three cases were ascertained over a six month period by two neuropaediatricians aware of this specific anomaly, which suggests that this microdeletion is not particularly rare. Comparison of the clinical and cytogenetic findings in a total of 24 patients allows a new contiguous gene syndrome to be defined that only high resolution analysis can detect. In two cases, molecular analysis confirmed the cytogenetic results. The Charcot-Marie-Tooth type Ia gene has recently been localised to the 17p11.2 sub-band.

Documentos Relacionados

• Smith-Magenis syndrome
• Smith-Magenis syndrome
• Structure and Evolution of the Smith-Magenis Syndrome Repeat Gene Clusters, SMS-REPs
• Características clínicas, comportamentais, cognitivas e comunicativa na síndrome Smith-Magenis
• Genes in a Refined Smith-Magenis Syndrome Critical Deletion Interval on Chromosome 17p11.2 and the Syntenic Region of the Mouse