| A rare genetic multiple congenital anomalies/dysmorphic syndrome with characteristics of varying degrees of intellectual disability, global developmental delay (notably with severe speech and language impairment), muscular hypotonia, and facial dysmorphism (such as broad forehead, bitemporal narrowing, upslanting palpebral fissures, low-set ears, flat nasal bridge, bulbous nose and variably macroglossia). Highly variable additional features include cardiac defects (including persistent foramen ovale, ventricular septal defects, tetralogy of Fallot), coordination problems, seizures, abnormal growth parameters (including microcephaly, low birth and postnatal weight) and brain morphology anomalies (such as ventriculomegaly and myelination defects). |