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Dementia in movement disorders.

H Teräväinen, M Hietanen, J Stoessl

    The Canadian Journal of Neurological Sciences. Le Journal Canadien Des Sciences Neurologiques
    |November 1, 1986
    PubMed
    Summary
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    Huntington's disease and Parkinson's disease are linked to dementia through distinct striatal pathology. This review examines subcortical dementia correlations, contrasting them with cortical Alzheimer's disease.

    Area of Science:

    • Neurology
    • Neuroscience
    • Pathology

    Background:

    • Dementia is a common feature in Huntington's disease and increasingly recognized in Parkinson's disease.
    • The underlying pathology in these movement disorders involves differential striatal involvement.

    Purpose of the Study:

    • To review clinicopathological correlations in subcortical disorders associated with dementia.
    • To compare these findings with predominantly cortical pathologies like Alzheimer's disease.

    Main Methods:

    • Review of clinicopathological findings in Huntington's disease, Parkinson's disease, and other extrapyramidal diseases.
    • Comparative analysis of subcortical versus cortical pathology in dementia.

    Main Results:

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  • Huntington's disease pathology primarily affects the caudate nucleus.
  • Parkinson's disease pathology preferentially involves the putamen.
  • Dementia can occur in various extrapyramidal diseases with diffuse pathology.

    • Conclusions:

    • Differential striatal involvement underlies dementia in Huntington's and Parkinson's diseases.
    • Subcortical pathologies contribute to dementia, distinct from cortical Alzheimer's disease.