Format

Send to

Choose Destination
See comment in PubMed Commons below
Am J Med Genet A. 2010 Sep;152A(9):2342-5. doi: 10.1002/ajmg.a.33590.

Atypical Silver-Russell phenotype resulting from maternal uniparental disomy of chromosome 7.

Author information

1
Genetic Health Services Victoria, and Murdoch Children's Research Institute, Melbourne, Australia.

Abstract

We report on a patient with atypical Silver-Russell phenotype comprising severe growth retardation, unusual facies, bilateral Duane anomaly and infantile hypercalcemia caused by maternal uniparental iso/heterodisomy (mUPD) of chromosome 7. The development of myoclonus in this patient lends further support to the hypothesis that abnormal imprinting of the SGCE gene is responsible for some cases of myoclonus-dystonia syndrome. This case highlights the utility of SNP microarray technology as an accessible tool for the diagnosis of mUPD7 in atypical cases. We propose that depending on the balance of iso- and heterodisomic segments in a particular patient, mUPD7 may result in a range of phenotypes not confined to classic Silver-Russell syndrome.

PMID:
20684011
DOI:
10.1002/ajmg.a.33590
[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments

    Supplemental Content

    Full text links

    Icon for Wiley
    Loading ...
    Support Center