title: Bilateral vidian nerve schwannomas associated with facial palsy. Case report and review of the literature.
abstract: Intracranial schwannomas are relatively common benign tumors arising from Schwann cells. Among the cranial nerves, the vestibular division of the vestibulocochlear nerve is the site most commonly affected by these lesions, followed by the trigeminal nerve. The authors report a case of bilateral schwannomas arising from both of the pterygoid canals. A 13-year-old girl presented with intermittent headaches and left-sided facial palsy. Preoperative computerized tomography scans and magnetic resonance images revealed nonenhancing round masses within the bilateral vidian canals, bone erosion, and sclerosis. The transnasal transseptal transsphenoidal approach was used to remove the masses. Postoperatively, the patient recovered uneventfully. On histopathological examination, the masses were confirmed as schwannomas. The clinical presentation and probable histogenesis of schwannomas arising in this location are discussed together with a review of the literature.
authors.affiliation: Department of Neurosurgery, Hanyang University Guri Hospital, College of Medicine, Guri, Korea.
authors.forename: Jin Hwan
authors.initials: JH
authors.lastname: Cheong
authors.forename: Jae Min
authors.initials: JM
authors.lastname: Kim
authors.forename: Koang Hum
authors.initials: KH
authors.lastname: Bak
authors.forename: Choong Hyun
authors.initials: CH
authors.lastname: Kim
authors.forename: Young Ha
authors.initials: YH
authors.lastname: Oh
authors.forename: Dong Woo
authors.initials: DW
authors.lastname: Park
mesh_terms: D000293:Adolescent; D020330:Bell Palsy / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D001932:Brain Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D003390:Cranial Nerve Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D005154:Facial Nerve / Q000473:pathology / Q000601:surgery; D005155:Facial Nerve Diseases / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging; D018365:Neoplasm, Residual / Q000175:diagnosis; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D009442:Neurilemmoma / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D011183:Postoperative Complications / Q000175:diagnosis; D013100:Sphenoid Bone / Q000601:surgery; D014057:Tomography, X-Ray Computed