| Phenotype details |
see paper; ...,f rom birth severe haemolytic anaemia with macrocytosis, thrombocytopenia, hepatosplenomegaly, transfusion dependent, hyperbilirubinemia, left vesicoureteral reflux (13y-surgical correction), chronic urinary retention; 6m-infantile spasms; tonic seizures daily; generalized tonic-clonic seizures (monthly); EEG 4m–16y hypsarrhythmia, then slow background, bilateral independent or multifocal discharges, epileptic spasms and tonic seizures recorded; MRI brain 7m, 2y, 4y, 8y thin corpus callosum, multifocal white matter abnormalities, asymmetric dysmorphic lateral ventricles, progressive trabecular bone thickening; global profound developmental delay, generalized hypotonia, microcephaly, visual impairment, nystagmus, squint, spastic quadriparesis, dysphagia (percutaneous endoscopic gastrostomy 12y); severe hemolytic anemia, transfusion dependent |