Cluster headache (CH) is a clinical entity characterized by strictly unilateral head pain attacks accompanied by ipsilateral autonomic phenomena. The attacks are severe, short-lasting (15-180 minutes), and may occur several times a day 1 . Symptomatic CH cases have been described in association with different kind of lesions located in the middle fossa, near the sellar or parasellar structures although lesions of the internal carotid artery (ICA) were also described: aneurysma of ICA and internal carotid arte…
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