neurologic disorders
Cluster Headache
Diagnosis of Cluster Headache
Clinical evaluation Diagnosis of cluster headache is based on the distinctive symptom pattern and exclusion of intracranial abnormalities. Other unilateral primary headache syndromes with autonomic symptoms, which are sometimes grouped together with cluster headache as trigeminal autonomic cephalgias, should be excluded: Short-Lasting Unilateral Neuralgiform Headache With Conjunctival Injection and Tearing (SUNCT) (short-lasting unilateral neuralgiform headache with conjunctival injection and tearing) and short-lasting unilateral neuralgiform headache attack (SUNA): Attacks are very brief (5 to 250 seconds) and occur at high frequency (up to 200 attacks/day). Chronic paroxysmal hemicrania: Attacks are more frequent (>5/day) and much briefer (about 30 minutes) than in cluster headache. Hemicrania continua: Moderately severe continuous unilateral head pain occurs with superimposed brief episodes of more intense pain. Chronic paroxysmal hemicrania and hemicrania continua, unlike SUNCT and cluster headache (and Migraine ), respond dramatically to 