A case of cluster headache accompanied by myoclonus and hemiparesis.
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BACKGROUND
Cluster headache is a primary headache disorder characterized by periodic episodes of intense headache accompanied by autonomic symptoms. We report an unusual clinical presentation of cluster headache that was preceded by myoclonus and accompanied by hemiparesis.
METHODS
A 26-year-old man visited hospital due to recurrent jerky movements on the left side of his face and neck area lasting 3 days. These jerky movements had disappeared spontaneously without specific treatment. On the 10th day after onset of the jerky movements, the patient developed a series of unilateral severe headaches that were accompanied by autonomic symptoms lasting 1-2 hours. According to the second edition of The International Classification of Headache Disorders, he was diagnosed as having cluster headache. Two of the 16 severe headache attacks this patient suffered were accompanied by dysarthria and hemiparesis. Electroencephalography performed during hemiparesis revealed diffuse lateralized slow activity on the ipsilateral hemisphere of the headache side. The headache and accompanying hemiparesis disappeared after medical treatment for cluster headache.
CONCLUSIONS
We describe a case of cluster headache accompanied by hemiparesis, which was preceded by myoclonus. We also outline the possible mechanisms underlying this case.
