Parkinson-related dementias
1Division of Behavioral Neurology, Department of Neurology, Mayo Clinic, Rochester, MN 55905, USA. bboeve@mayo.edu <bboeve@mayo.edu>
Neurologic Clinics
|July 31, 2007
Summary
Rare neurodegenerative disorders cause dementia with parkinsonism. This review details corticobasal syndrome, progressive supranuclear palsy, multiple system atrophy, and frontotemporal dementia, comparing them to other dementias for accurate diagnosis.
Area of Science:
- Neuroscience
- Neuropathology
- Genetics
Background:
- Advances in neurogenetics and molecular biology have identified new causes of dementia with parkinsonism.
- Several rare neurodegenerative disorders present with both cognitive impairment and parkinsonian features.
Purpose of the Study:
- To review and compare rare disorders causing dementia with parkinsonism.
- To highlight diagnostic features differentiating these conditions from other neurodegenerative diseases.
Main Methods:
- Literature review of clinical, neuropsychologic, neuroradiologic, and neuropathologic data.
- Comparative analysis of specific disorders: corticobasal syndrome/degeneration, progressive supranuclear palsy, multiple system atrophy, and frontotemporal dementia with parkinsonism linked to chromosome 17.
- Contrast with Alzheimer's disease, Parkinson's disease, Parkinson's disease with dementia, and dementia with Lewy bodies.
Main Results:
- These rare disorders share overlapping clinical and pathological features.
- Distinctive clinical, imaging, and pathological characteristics are critical for differential diagnosis.
- Accurate diagnosis relies on integrating multiple diagnostic modalities.
Conclusions:
- Dementia with parkinsonism encompasses a spectrum of rare neurodegenerative disorders.
- Understanding the nuances of these conditions is crucial for precise diagnosis and management.
- Further research is needed to elucidate the specific mechanisms underlying these parkinsonian dementias.
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