WDFY3 Haploinsufficiency Is Associated With Autosomal Dominant Neurodevelopmental Disorders and Macrocephaly.

WDFY3 (MIM#617485) defects may manifest neurodevelopmental disorders (NDDs) and opposite effects on brain size based on allelic effect. This case highlights a heterozygous WDFY3 nonsense variant linked to mild-to-moderate NDDs, macrocephaly, and unique facial features. Findings emphasize the importance of exome sequencing in NDDs for accurate diagnosis and clinical management.