Definition of Sphenopalatine neuralgia
Sphenopalatine neuralgia: A distinctive syndrome of headaches, better known today as cluster headache. There are two main clinical patterns of cluster headache -- the episodic and the chronic:
The episodic and acute forms of cluster headache may transform into one another, so it seems most likely that they are merely different-appearing clinical patterns of one and the same disease.
Although the mechanisms underlying cluster headache and migraine may have a degree of commonality, cluster headache looks to be different and distinct as a disease from migraine. For example, propranolol is effective for migraine but not cluster headache while lithium benefits cluster headache syndrome but not migraine.
Cluster headache has also gone by a bevy of other confusing names including ciliary neuralgia, erythroprosopalgia, histamine cephalalgia, migrainous neuralgia, Raeder's syndrome, and vidian neuralgia.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 6/14/2012
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