| Phenotype details |
see paper; ..., profound developmental delay, no speech, unable to sit; 6m-generalized tonic clonic seizures; MRI bilateral parietal pachygyria, periventricular heterotopia, ventriculomegaly, hyperintensity and paucity of the white matter; hypotonia, nystagmus; no microcephaly but low OFC; small for gestational age; congenital heart defect; no ophthalmologic features but poor fixation |