A case of cystinuria presenting with cerebellar ataxia and dementia.

Abstract excerpt

Cystinuria normally manifests as recurrent urinary stones and renal dysfunction, but can present to neurologists with ataxia, posterior column impairment, intellectual deficiency and pyramidal and extrapyramidal signs; the neuroradiological features include cerebellar, brainstem and cerebral atrophy. It is an autosomal recessive disease caused by a transport disorder of cystine and dibasic amino acids in renal...

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