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Palatal Myoclonus (syn. Palatal Tremor).
1Emeritus Consultant Neurologist, Department of Neurology, Hull Royal Infirmary, Hull, UK.
European Neurology
|October 4, 2008
Summary
Symptomatic palatal tremor involves lesions in the Guillain-Mollaret triangle, often linked to hypertrophic olivary degeneration. Essential palatal tremor, however, lacks evident causes or signs, suggesting potential supranuclear lesions.
Area of Science:
- Neurology
- Neuroscience
- Pathology
Background:
- Symptomatic palatal tremor is associated with lesions in the Guillain-Mollaret triangle and hypertrophic olivary degeneration.
- Essential palatal tremor is idiopathic, lacking demonstrable physical or radiological signs.
Observation:
- Palatal tremor can be symptomatic or essential.
- Symptomatic cases often show hypertrophic olivary degeneration.
Findings:
- The study proposes that essential palatal tremor may stem from supranuclear lesions in the striatum or brainstem.
- These lesions could trigger medullary activation and denervation hypersensitivity in olivary neurons.
Implications:
- This hypothesis offers a potential organic basis for essential palatal tremor.
- Understanding the neuroanatomical origins may aid in diagnosing and treating palatal tremors.
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