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. 1997 Dec;34(12):986–989. doi: 10.1136/jmg.34.12.986

Features of DiGeorge syndrome and CHARGE association in five patients.

P de Lonlay-Debeney 1, V Cormier-Daire 1, J Amiel 1, V Abadie 1, S Odent 1, A Paupe 1, S Couderc 1, A L Tellier 1, D Bonnet 1, M Prieur 1, M Vekemans 1, A Munnich 1, S Lyonnet 1
PMCID: PMC1051148  PMID: 9429139

Abstract

We report on five patients presenting with features of two congenital disorders, DiGeorge syndrome (DGS) and CHARGE association. CHARGE association is usually sporadic and its origin is as yet unknown. Conversely, more than 90% of DGS patients are monosomic for the 22q11.2 chromosomal region. In each of the five patients, both cytogenetic and molecular analysis for the 22q11.2 region were normal. In view of the broad clinical spectrum and the likely genetic heterogeneity of both disorders, these cases are consistent with the extended phenotype of either DGS without 22q11.2 deletion or CHARGE association, especially as several features of CHARGE association have been reported in rare patients with 22q11.2 deletion association phenotypes. On the other hand, these could be novel cases of an independent association involving a complex defect of neural crest cells originating from the pharyngeal pouches.

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Selected References

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