NEURALGIA DE ARNOLD
Background: Episodic paroxysmal hemicrania (EPH) is a rare headache characterized by bouts of hemicranial pain with cranial autonomic symptoms separated by periods of pain-free remissions, very similar to episodic cluster headache (ECS). Objectives: To describe a new case of episodic paroxysmal hemicrania, and to discuss its pertinent differential diagnosis. Methods: A case is reported and the relevant literature concerning differential diagnosis is reviewed. Conclusion: EPH differs from other trigeminal-autonomic headaches in the frequency, duration and triggering of the episodes, as well as in its complete response to treatment with indomethacin.