title: [Spinal root of accessory nerve shwannoma: about a new case].
abstract: BACKGROUND
  The accessory nerve schwannoma localized in spinal canal is extremely rare; only nine cases have been reported in the literature until now. We report a new case of schwannoma at the spinal root of accessory nerve.
  
  
  METHODS
  A young woman aged 30 had a high cervical spinal cord compression with respiratory problems. At admission, magnetic resonance imaging (MRI) showed a tumor compressing the spinal cord at C2 to the foramen magnum. The tumor was removed successfully and its origin from the left accessory nerve was confirmed peroperatively.
  
  
  CONCLUSIONS
  Although schwannoma of the accessory nerve is exceptional, this entity should be considered as a differential diagnosis with the other tumors of the foramen magnum.
authors.affiliation: Service de neurochirurgie, hôpital Ibn Rochd, CHU d'Annaba, 2, rue de Strasbourg, 23000 Annaba, Algérie. mbouaziz@hotmail.com
authors.forename: M
authors.initials: M
authors.lastname: Bouaziz
authors.forename: S
authors.initials: S
authors.lastname: Derdour
authors.forename: O
authors.initials: O
authors.lastname: Laouar
authors.forename: A
authors.initials: A
authors.lastname: Lankar
mesh_terms: D020436:Accessory Nerve Diseases / Q000473:pathology* / Q000601:surgery; D000328:Adult; D003390:Cranial Nerve Neoplasms / Q000473:pathology* / Q000601:surgery; D005260:Female; D005539:Foramen Magnum / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D009442:Neurilemmoma / Q000473:pathology* / Q000601:surgery; D009460:Neurologic Examination; D019635:Neurosurgical Procedures; D013125:Spinal Neoplasms / Q000473:pathology* / Q000601:surgery; D013126:Spinal Nerve Roots / Q000473:pathology* / Q000601:surgery