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Late onset globoid cell leukodystrophy (Krabbe's disease)– Swedish case with 15 years of follow‐up

We describe a male patient with late onset globoid cell leukodystrophy (GLD) (Krabbe's disease) still alive at 24 years of age, with a well preserved intellectual and communicative capacity, in contrast to visual failure and severe central pyramidal and extrapyramidal motor disability with spasticity, dystonia, ataxia and peripheral neuropathy. Visual dysfunction began at 4 years of age, limping and balance problems at 8 years and epilepsy at 14 years of age. Neuroimaging at 15 years of age revealed white matter lesions, and nerve conduction velocity examinations showed a slowly developing polyneuropathy. Galactosylceramidase activity was reduced in leukocytes to 0.07μkat/kg protein compared with 0.02 (SD 0.01) μkat/kg protein in infantile GLD.