Secondary demyelination.
D001927:Brain Diseases / Q000150:complications; D002648:Child; D003711:Demyelinating Diseases / Q000209:etiology* / Q000473:pathology; D005621:Friedreich Ataxia / Q000473:pathology*; D006801:Humans; D007223:Infant; D009422:Nervous System Diseases / Q000150:complications*; D009472:Neuronal Ceroid-Lipofuscinoses / Q000150:complications