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Hemibody tremor related to stroke
1PET/Biomedical Cyclotron Unit, Hôpital Erasme, Université Libre de Bruxelles, Belgium.
Stroke
|December 1, 1993
Summary
Unilateral tremor can result from lacunar stroke in the caudate nucleus. This condition may show increased glucose metabolism in the contralateral sensorimotor cortex, as seen in a recent case study.
Area of Science:
- Neurology
- Neuroimaging
- Stroke Research
Background:
- Hemibody tremor is a rare stroke symptom.
- Investigated a case using brain MRI and FDG-PET.
Observation:
- A 65-year-old man developed a large-amplitude, resting tremor in his right arm and leg.
- MRI revealed left centrum semiovale infarct and left caudate lacunar infarction.
- L-dopa treatment was ineffective; rigidity and akinesia were absent.
Findings:
- The resting unilateral tremor correlated with a lacunar lesion in the caudate nucleus.
- Positron emission tomography showed increased glucose metabolism in the left sensorimotor cortex.
Implications:
- Suggests a link between caudate nucleus lacunar stroke and unilateral tremor.
- Highlights potential contralateral sensorimotor cortex hypermetabolism in such cases.
- Informs understanding of stroke-related movement disorders.