| Phenotype details |
see paper; ..., 2y-mild stable anaemia (no previous measurement available); retinal dystrophy; 2y6m-focal seizures; 3y-epileptic spasms in small clusters (weekly); EEG slow background, no epileptiform discharges in 4 EEG recordings; MRI brain 4m thin corpus callosum with absent splenium and delayed myelination, 6y 7m increased signal of white matter in watershed areas, generalized decrease of white matter volume; global profound developmental delay, wheelchair bound, quadriparesis, pseudobulbar signs, jerky involuntary movements, stereotypical movements and behavior, dysphagia (percutaneous endoscopic gastrostomy 3y), cortical visual impairment, nystagmus; mild anemia |