Can cluster headache occur in the occipital region?

Cluster headache is typically observed in the orbital, supraorbital or temporal regions, or in a combination of the above. The site of pain is one of the diagnostic criteria for cluster headache included in the International Classification of Headache Disorders. It has been reported that pain may also occur in the ear, nose, neck, shoulder, and other regions. In this report, we present a case who presented exclusively with occipital pain attributable to probable cluster headache. In the presence of other typical features of cluster headache, the diagnosis should still be considered even when headache pain occurs in extratrigeminal locations.