| Phenotype details |
encephalopathy, paroxysmal ataxia, hypotonia, dystonia, spasticity, dysarthria , dysphagia, seizure; neuroimaging abnormalities: caudate, putamen, thalamus, corticosubcortical, cerebellum, brainstem, periqueductal, spinal cord, lactate on MRS; outcome: microcephaly, hypotonia, intellectual disability, dystonia |