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Monozygotic twins discordant for frontonasal malformation
Author(s) -
Mohammed Shehla N.,
Swan Marc C.,
Wall Steven A.,
Wilkie Andrew O.M.
Publication year - 2004
Publication title -
american journal of medical genetics part a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.064
H-Index - 112
eISSN - 1552-4833
pISSN - 1552-4825
DOI - 10.1002/ajmg.a.30280
Subject(s) - craniofacial , etiology , monozygotic twin , pediatrics , medicine , genetics , biology , pathology , psychiatry
Frontonasal malformation (FNM), also known as the median cleft face syndrome, encompasses a spectrum of phenotypes that are believed to result from a single underlying aetiology. Over the course of two decades, the Craniofacial Unit at the Radcliffe Infirmary, Oxford has been involved in the management of six same‐sex twins where only a single twin is affected. With local ethical committee approval, five sets of twins were traced and consented to participation in this study. Monozygosity of all five twin pairs was confirmed, and the clinical features were reviewed. We discuss the mechanistic relationship between FNM and the twinning process and the genetic implications of this association. © 2004 Wiley‐Liss, Inc.