title: [Accessory nerve schwannoma of the intracisternal type: a case report].
abstract: Accessory nerve schwannomas are extremely rare and they are classified into three types according to their locations; intrajugular, intracisternal and spinal canal type. We report a case of intracisternal schwannoma that arose from the spinal accessory nerve roots and we describe it's clinical characteristics. A-48-year-old female was admitted to our hospital with a complaint of left occipital pain. Magnetic resonance imaging (MRI) showed a well-defined mass 2.5×1.5 cm in the left cerbellomedullary cistern. It was enhanced heterogeneously with gadolinium. Cerebral angiography showed a mildly hypervascular lesion. Total removal of the tumor was performed by the left lateral suboccipital approach and the histological diagnosis was schwannoma.
authors.affiliation: Department of Neurosurgery, Higashihiroshima Medical Center, Saijyo, Higashihiroshima-city, Hiroshima, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Sadatomo
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Yuki
authors.forename: Keisuke
authors.initials: K
authors.lastname: Migita
authors.forename: Toshikazu
authors.initials: T
authors.lastname: Hidaka
authors.forename: Kaoru
authors.initials: K
authors.lastname: Kurisu
mesh_terms: D000055:Accessory Nerve; D003390:Cranial Nerve Neoplasms / Q000175:diagnosis* / Q000601:surgery; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009442:Neurilemmoma / Q000175:diagnosis* / Q000601:surgery