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Mesomelic and rhizomelic short stature: The phenotype of combined Leri‐Weill dyschondrosteosis and achondroplasia or hypochondroplasia

Mesomelic and rhizomelic short stature: The phenotype of combined Leri‐Weill dyschondrosteosis... We studied two children with combined genetic skeletal disorders. Both had Leri‐Weill dyschondrosteosis (LWD); one also had achondroplasia and the other had hypochondroplasia. Both had severe short stature and evidence of rhizomelia and mesomelia as well as other phenotypic features of their individual genetic disorders. Achondroplasia was due to the G380R FGF3R mutation and hypochondroplasia to a N540K mutation in the same gene. The patient with hypochondroplasia had a heterozygous SHOX deletion; no SHOX mutation was identified in the child with achondroplasia. The phenotypes of combined LWD and achondroplasia or hypochondroplasia appeared to be less than additive, suggesting that SHOX and FGFR3 act on overlapping pathways of bone growth and development. © 2002 Wiley‐Liss, Inc. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png American Journal of Medical Genetics Part A Wiley

Mesomelic and rhizomelic short stature: The phenotype of combined Leri‐Weill dyschondrosteosis and achondroplasia or hypochondroplasia

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References (24)

Publisher
Wiley
Copyright
Copyright © 2003 Wiley Subscription Services, Inc., A Wiley Company
ISSN
1552-4825
eISSN
1552-4833
DOI
10.1002/ajmg.a.10807
pmid
12476453
Publisher site
See Article on Publisher Site

Abstract

We studied two children with combined genetic skeletal disorders. Both had Leri‐Weill dyschondrosteosis (LWD); one also had achondroplasia and the other had hypochondroplasia. Both had severe short stature and evidence of rhizomelia and mesomelia as well as other phenotypic features of their individual genetic disorders. Achondroplasia was due to the G380R FGF3R mutation and hypochondroplasia to a N540K mutation in the same gene. The patient with hypochondroplasia had a heterozygous SHOX deletion; no SHOX mutation was identified in the child with achondroplasia. The phenotypes of combined LWD and achondroplasia or hypochondroplasia appeared to be less than additive, suggesting that SHOX and FGFR3 act on overlapping pathways of bone growth and development. © 2002 Wiley‐Liss, Inc.

Journal

American Journal of Medical Genetics Part AWiley

Published: Jan 1, 2003

Keywords: ; ;

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