Diagnostics of cervicogenic headache.

Cervicogenic headache (CH) is a clearly defined headache syndrome and can usually be differentiated from other unilateral headaches like cluster headache, chronic paroxysmal hemicrania (CPH) and hemicrania continua by a thorough history and neurological examination. Combinations of CH with other headaches like migraine, tension headache, combination headache and drug induced headache, that occur quite frequently, can complicate the diagnosis. In our own material of 5520 headache patients the prevalence of CH was 13.8% (763). Four hundred and thirty of these patients suffered from CH in combination with one or more other headaches.