| Phenotype details |
see paper; ..., profound developmental delay, no speech, no head support; 2m-generalized tonic clonic, myoclonic seizures, excessive smacking movements; MRI asymmetrical ventriculomegaly, cortical atrophy, demyelination of periventricular white matter, thin corpus callosum, cerebellar vermian hypoplasia; intracranial calcifications; spasticity, rigidity, dystonic movement; microcephaly; short stature, low weight; congenital heart defect; optic atrophy, couldn't follow light |