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Striatal infarcts mimicking frontotemporal dementia: a case report
Y Nishio1, Y Nakano, K Matsumoto
1Division of Clinical Neurosciences, Hyogo Institute for Aging Brain and Cognitive Disorders, Himeji, Japan.
European Journal of Neurology
|June 26, 2003
Summary
Bilateral striatal infarcts caused frontotemporal dementia-like symptoms in a patient. The non-degenerative, vascular origin suggests disrupted fronto-subcortical circuits are responsible for the behavioral syndrome.
Area of Science:
- Neurology
- Neuroscience
- Behavioral Neurology
Background:
- Frontotemporal dementia (FTD) is a neurodegenerative disorder characterized by behavioral and cognitive changes.
- Distinguishing FTD from other conditions with similar presentations is crucial for accurate diagnosis and management.
Observation:
- A patient presented with insidious onset of stereotyped and disinhibited behaviors over two years, mimicking FTD.
- Neuroimaging revealed bilateral striatal infarcts and hypometabolism in the frontal lobes, basal ganglia, and thalami via 18-fluorodeoxy glucose positron emission tomography.
Findings:
- The patient's peculiar behavioral alterations remained stable for seven years, indicating a non-degenerative, vascular etiology rather than a progressive neurodegenerative disease.
- The FTD-like syndrome is attributed to a disruption of fronto-subcortical circuits, specifically involving the striatum or anterior thalamic peduncle.
Implications:
- This case highlights the importance of considering vascular etiologies in the differential diagnosis of frontotemporal dementia.
- Understanding the role of striatal and fronto-subcortical circuit disruption can inform diagnostic approaches and therapeutic strategies for patients with complex behavioral syndromes.
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