Ramsay Hunt syndrome type 1
|Ramsay Hunt syndrome type 1|
Onset of symptoms usually occur in early adulthood and is characterized by intention tremor, progressive ataxia, convulsions, and myoclonic epileptic jerks. Tremors usually affect one extremity, primarily the upper limb, and eventually involve the entire voluntary motor system. Overall, the lower extremity is usually disturbed less often than the upper extremity. Additional features of the syndrome include: an unsteady gait, seizures, muscular hypotonia, reduced muscular coordination, asthenia, adiadochokinesia and errors with estimating range, direction, and force of voluntary movements. Mental deterioration can, rarely, occur.
RHS type 1 is caused by the impairment of a regulatory mechanism between cerebellar and brainstem nuclei and has been associated with a wide range of diseases, including Lafora disease, dentatorubropallidoluysian atrophy, and celiac disease.
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Some have described this condition as difficult to characterize.
- "National Institute of Neurological Disorders and Stroke". February 14, 2011. Archived from the original on February 16, 2015. Retrieved 2011-05-12.
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