Pathogenic variant in GATA4 associated with atrioventricular septal defect and congenital diaphragmatic hernia: A case report

Pathogenic variants in GATA4, a transcription factor, are predominantly associated with congenital heart defects and gonadal abnormalities. We describe a case of a maternally inherited GATA4 pathogenic variant (c.474C > G p.[Tyr158Ter]) in a 21-week gestation fetus presenting with partial atrioventricular septal defect and congenital diaphragmatic hernia. Whilst there is a weight of evidence implicating GATA4 dysfunction in congenital diaphragmatic hernia, this is only the second report to our knowledge to identify a causative GATA4 variant with congenital diaphragmatic hernia.