title: Nummular headache and pituitary lesion: A case report and literature review.
abstract: Nummular headache (NH) is a newly categorized headache disorder characterized by a consistent clinicographics in each attack. Currently, it is considered as a primary headache disorder due to epicranial neuralgia but the pathomechanism is still unknown. We report a woman, whose recurrent NH subsided after trans-sphenoidal surgery for her pituitary oncocytoma. The recovery of NH in this patient encourages the central mechanism for NH occurrence. After a review of literature concerning, NH and intracranial secondaries we propose that central NH is a referral pain from pain-sensitive structures, such as meninges, superimposing by pre-existing lower pain threshold or pain modulation.
authors: Department of Neurosurgery, Paochien Hospital, Pingtung, Taiwan.
authors: Chi
authors: C
authors: Chui
authors: Wei Hsi
authors: WH
authors: Chen
authors: Hsin Ling
authors: HL
authors: Yin
keywords: Headache; nummular headache; oncocytoma; pituitary; referred pain
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