Journal
ARCHIVES OF NEUROLOGY
Volume 57, Issue 9, Pages 1353-1355Publisher
AMER MEDICAL ASSOC
DOI: 10.1001/archneur.57.9.1353
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Background: Thalamic tremor is typically characterized by resting and intention components; a postural element is often present as well. Previously reported cases of acquired thalamic tremor have demonstrated lesions in the posterior thalamus or dentatorubrothalamic tract. Objectives: To report a case of dystonic-postural tremor of the upper extremity that occurred after a contralateral anterior thalamic infarct, and to discuss potential tremorigenic mechanisms. Design: Case report. Setting: Municipal hospital neurology clinic. Patient: A 65-year-old right-handed woman suddenly developed a dystonic tremor in her left hand after undergoing coronary bypass surgery. The tremor persisted unchanged for 8 months, at which time she was evaluated by us. Cranial magnetic resonance imaging scans demonstrated a right anterior thalamic infarct. Conclusion: To our knowledge, this is the first report of focal tremor caused by a lesion of the anterior thalamus.
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