Palatal myoclonus is a fast spasm (contraction) of the muscles in the roof of the mouth.
Palatal myoclonus is most often due to damage (lesions) on brain nerve pathways. Conditions such as multiple sclerosis may lead to this problem.
Jankovic J. Movement disorders. In: Daroff RB, Fenichel GM, Jankovic J, eds. Bradley's Neurology in Clinical Practice. 6th ed. Philadelphia, PA: Elsevier Saunders; 2012:chap 71.
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