title: A case of cervicogenic headache caused by C5 nerve root derived shwannoma: Case report.
abstract: Introduction We report a case of cervicogenic headache caused by an intradural extramedullary tumor of the middle cervical spine, which has not previously been reported. Case presentation The patient was a 73-year-old male who visited a physician for a chief complaint of pain from the left lower jaw to the auricle and occipital region. The headache was induced with retroflexion of the neck. On cervical magnetic resonance imaging, an intradural extramedullary tumor was noted on the left side at the C4/5 level. The intradural tumor, which arose from the C5 nerve root, was excised and the pain was resolved. The pathological diagnosis was schwannoma. Conclusion Previously reported cases of spinal cord tumor-induced cervicogenic headache were due to upper cervical spinal tumors. This is the first report that a middle-lower cervical intradural extramedullary tumor caused cervicogenic headache.
authors.affiliation: 1 Department of Neurosurgery, Shonan-Kamakura General Hospital, Kamakura, Kanagawa, Japan.
authors.forename: Gakuji
authors.initials: G
authors.lastname: Gondo
authors.affiliation: 1 Department of Neurosurgery, Shonan-Kamakura General Hospital, Kamakura, Kanagawa, Japan.
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Watanabe
authors.affiliation: 2 Department of Neurology, Shonan-Kamakura General Hospital, Kamakura, Kanagawa, Japan.
authors.forename: Junya
authors.initials: J
authors.lastname: Kawada
authors.affiliation: 1 Department of Neurosurgery, Shonan-Kamakura General Hospital, Kamakura, Kanagawa, Japan.
authors.forename: Masahiko
authors.initials: M
authors.lastname: Tanaka
authors.affiliation: 1 Department of Neurosurgery, Shonan-Kamakura General Hospital, Kamakura, Kanagawa, Japan.
authors.forename: Kazuaki
authors.initials: K
authors.lastname: Yamamoto
authors.affiliation: 1 Department of Neurosurgery, Shonan-Kamakura General Hospital, Kamakura, Kanagawa, Japan.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Tanaka
authors.affiliation: 1 Department of Neurosurgery, Shonan-Kamakura General Hospital, Kamakura, Kanagawa, Japan.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Endo
mesh_terms: D000368:Aged; D002574:Cervical Vertebrae; D006801:Humans; D008297:Male; D009442:Neurilemmoma / Q000150:complications*; D010524:Peripheral Nervous System Neoplasms / Q000150:complications*; D051298:Post-Traumatic Headache / Q000209:etiology*; D013126:Spinal Nerve Roots / Q000473:pathology*
keywords: Cervicogenic headache; middle-lower cervical; schwannoma; spinal tumor