1. A case of mild CHARGE syndrome associated with a splice site mutation in CHD7.
- Author
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Wells C, Loundon N, Garabedian N, Wiener-Vacher S, Cordier-Bouvier MD, Goudeffroye G, Attié-Bitach T, and Marlin S
- Subjects
- CHARGE Syndrome pathology, Ductus Arteriosus pathology, Hearing Loss, Sensorineural pathology, Heart Defects, Congenital pathology, Humans, Infant, Male, Mutation, RNA Splice Sites genetics, Semicircular Canals pathology, CHARGE Syndrome genetics, DNA Helicases genetics, DNA-Binding Proteins genetics, Hearing Loss, Sensorineural genetics, Heart Defects, Congenital genetics
- Abstract
CHARGE syndrome (MIM#214800) (Coloboma, Heart defect, Atresia of choanae, Retarded growth and development, Genital hypoplasia, Ear abnormalities/deafness) is caused by heterozygous mutation of CHD7 transmitted in an autosomal dominant manner. In this report, we describe a patient with bilateral hearing impairment, unusually-shaped ears, no intellectual disability and a patent ductus arteriosus. Further investigation showed abnormal semicircular canals and the presence of olfactory bulbs. He does not fulfill the Blake or the Verloes criteria for CHARGE. A de novo mutation at the donor splice site of intron 33 was identified (c.7164 + 1G > A). It is of importance to diagnose mildly affected patients for appropriate genetic counselling and to better understand the mild end of the phenotypic spectrum of CHARGE syndrome., (Copyright © 2016 Elsevier Masson SAS. All rights reserved.)
- Published
- 2016
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