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A case of Alzheimer's disease with extensive focal white matter changes
B Zahner1, C J Lang, A Engelhardt
1Department of Neurology, University of Erlangen-Nuremberg, Germany.
Abstract:
The case of a patient is reported who suffered from disturbed concentration and memory and constructive apraxia. She had only mild neuropsychological deficits at the first examination. T2-weighted MRI presented extensive focal white matter changes. A brain biopsy showed changes typical for Alzheimer's disease (AD). The extent of the white matter lesions was surprising compared to the mild clinical signs she had. This case confirms that AD may result in prominent white matter disease caused by incomplete infarction or demyelination.
Insights
Alzheimer's disease (AD) can cause significant white matter changes, even with mild initial symptoms. This case highlights AD
Area of Science:
- Neurology
- Neuroscience
- Pathology
Background:
- Alzheimer's disease (AD) is a progressive neurodegenerative disorder primarily characterized by amyloid plaques and neurofibrillary tangles.
- White matter integrity is crucial for cognitive function, and its disruption can significantly impact neurological performance.
Observation:
- A patient presented with mild initial neuropsychological deficits, including disturbed concentration, memory impairment, and constructive apraxia.
- Neuroimaging revealed extensive focal white matter changes on T2-weighted MRI.
- Brain biopsy confirmed pathological changes characteristic of Alzheimer's disease.
Findings:
- The observed white matter lesions were disproportionately extensive relative to the patient's mild clinical presentation.
- The findings suggest a strong association between Alzheimer's disease and significant white matter pathology.
- Pathological examination indicated that these white matter changes may stem from incomplete infarction or demyelination.
Implications:
- This case underscores that Alzheimer's disease can manifest with prominent white matter disease, challenging typical diagnostic presentations.
- It emphasizes the importance of considering white matter changes in the differential diagnosis of cognitive decline, even in early stages.
- Further research is warranted to elucidate the mechanisms linking AD pathology to white matter degeneration and its clinical impact.