De Novo interstitial deletion 13q33.3q34 in a male patient with double outlet right ventricle, microcephaly, dysmorphic craniofacial findings, and motor and developmental delay

Publisher: John Wiley & Sons Inc

E-ISSN: 1552-4833|167|5|1134-1141

ISSN: 1552-4825

Source: American Journal Of Medical Genetics Part A, Vol.167, Iss.5, 2015-05, pp. : 1134-1141

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Abstract

We describe a 6‐year‐old male, diagnosed at birth with double outlet right ventricle (DORV), anterior aorta, multiple ventricular septal defects, pulmonary stenosis, microcephaly and mildly dysmorphic craniofacial findings. Chromosomal analysis showed a normal male karyotype but on subsequent array comparative genomic hybridization (array CGH) analysis a de novo 2.5Mb loss in chromosome 13q at 13q33.3q34, together with an inherited gain at 4p12, were detected. The propositus underwent placement of a Blalock Taussig shunt and subsequently a Glenn and Fontan operation was performed. In this report we propose that COL4A1 and COL4A2 may be candidate genes for congenital heart disease (CHD) in individuals with a deletion in 13q within the 6Mb critical region for cardiac development proposed by Huang et al., [2012]. © 2015 Wiley Periodicals, Inc.