CHD8 overgrowth syndrome

Definition

A rare multiple congenital anomalies/dysmorphic syndrome characterized by mild to moderate intellectual disability, autism spectrum phenotype, macrocephaly, tall stature, gastrointestinal problems (including recurrent constipation), distinctive facial features (including wide-set eyes with down-slanted palpebral fissure, broad nose with full nasal tip, pointed chin and broad forehead with prominent supraorbital ridge) and sleep problems. Other clinical manifestations include anxiety problems, attention problems, impaired social interactions and seizures.