This paper reports the diagnosis and management of a 65-year-old male patient with Morvan’s syndrome presenting with neurological symptoms including myokymia, myasthenia, hyperhidrosis, sleeping disorder and visual hallucination. Diagnostic examination revealed probable malignant lesion of the thymus gland, and the abnormality in immunologic function including positive expression of peripheral blood anti-voltage-gated potassium channel antibodies. This patient was definitely diagnosed of Morvan’s syndrome and reached clinical partial recovery after symptomatic and supportive treatment.
Key words
Morvan’s syndrome /
Dyskinesias /
Potassium channels, voltage-gated /
Anti-voltage-gated potassium channel antibodies
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