| A rare congenital disorder of glycosylation caused by mutations in the PGM3 gene with characteristics of neonatal to childhood onset of recurrent bacterial and viral infections, inflammatory skin diseases, atopic dermatitis and atopic diatheses and marked serum immunoglobulin E elevation. Early neurologic impairment is evident including developmental delay, intellectual disability, ataxia, dysarthria, sensorineural hearing loss, myoclonus and seizures. |