RESOLUTION OF CHRONIC CLUSTER HEADACHE AFTER RESECTION OF A TENTORIALMENINGIOMA - CASE-REPORT

CLUSTER HEADACHE IS almost always idiopathic, but, in rare cases, asso ciated intracranial lesions have been found. We describe a patient who had chronic cluster headache for more than 20 years. The headache imm ediately resolved upon resection of a tentorial meningioma. Prior repo rts of cluster headache as a manifestation of structural disease are b riefly reviewed. In the patient described, the pain was referred from the right tentorium cerebelli to the right side of the face, in accord ance with reported studies on the subjective localization of pain refe rred from posterior fossa structures. The accompanying abnormalities o f autonomic function may have been mediated by central autonomic refle xes that are also involved in the pathogenesis of idiopathic cluster h eadache.