title: [Maxillary trigeminal schwannoma. Presentation of a case and review of literature].
abstract: BACKGROUND
  Schwannomas are benign tumours that are relatively common in the head, however the involvement of the sinunasal region is rare and there are only 5 cases reported in the maxilla in current literature, representing less than 1% of bone tumours.
  
  
  METHODS
  We report the case of a woman with a right maxillary schwannoma who underwent a complete resection of the lesion. Emphasis is placed on the rarity of the lesion in terms of its location and includes a review of clinical behaviour, diagnosis and current treatment options.
  
  
  CONCLUSIONS
  Maxillary trigeminal schwannoma must be suspected if vague sinunasal symptoms, paranasal mass or, as in this case, trigeminal neuralgia present. Surgical treatment is indicated, and approaches vary according to location and tumour size.
authors.affiliation: Servicio de Neurocirugía, Hospital Regional Primero de Octubre ISSSTE, Ciudad de México, México. Electronic address: jacobaggio@yahoo.com.mx.
authors.forename: Alejandro Jacob
authors.initials: AJ
authors.lastname: Madrid-Sánchez
authors.affiliation: Servicio de Neurocirugía, Hospital Regional Primero de Octubre ISSSTE, Ciudad de México, México.
authors.forename: Carlos
authors.initials: C
authors.lastname: Castillo-Rangel
authors.affiliation: Servicio de Urgencias, Hospital General de Ticomán, Ciudad de México, México.
authors.forename: Myriam Leticia
authors.initials: ML
authors.lastname: Contreras-Ayala
authors.affiliation: Servicio de Neurocirugía, Hospital Regional Primero de Octubre ISSSTE, Ciudad de México, México.
authors.forename: Edgardo
authors.initials: E
authors.lastname: Ruiz-García
authors.affiliation: Escuela de Medicina, Universidad Anáhuac México Norte, Ciudad de México, México.
authors.forename: Ana Karen
authors.initials: AK
authors.lastname: Castillo-Castro
authors.affiliation: Servicio de Neurocirugía, Hospital General Balbuena, Ciudad de México, México.
authors.forename: Ricardo
authors.initials: R
authors.lastname: Ramírez-Aguilar
mesh_terms: D000368:Aged; D003390:Cranial Nerve Neoplasms / Q000145:classification / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008442:Maxillary Nerve / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D008443:Maxillary Sinus / Q000601:surgery; D009361:Neoplasm Invasiveness; D009442:Neurilemmoma / Q000145:classification / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D056739:Pterygopalatine Fossa / Q000601:surgery
keywords: Maxilar; Maxillary; Neurilemmoma; Neurilemoma; Schwannoma; Trigeminal; Trigémino