Main clinical features
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profound global developmental delay/unspecified intellectual disability, epilepsy, absent or severely delayed speech, varying degrees of spasticity, ventriculomegaly, and ICH/cerebral calcifications,also observed in the fetuses
absent or severely delayed speech, epilepsy, spasticity (mainly consisting of spastic tetraparesis), hypotonia (which frequently occurred neonatally), and dilation of lateral ventricles
dysmorphic facial features were noted in most individuals, mainly consisting of bitemporal narrowing, highly arched eyebrow and bulbous nasal tip. |