Phenotype details |
does not walk; no speech; comprehension very limited; 4m-regression stagnation; severe DD or ID; 9m-onset seizures (status epilepticus); no MRI anomalies; truncal hypotonia; hypertonia lower limbs; chorea-like movement disorder (limbs); stereotypic hands in mouth; intense stare, uncontrollable laughter, bruxism, pleasant behavior; large ears, thin upper lip, slightly upturned nose |