title: Primary middle ear schwannoma.
abstract: Schwannomas of the middle ear may originate from the nerves of the middle ear cavity or by extensions from neighboring structures. We present a case of a 51-year-old female patient with primary middle ear schwannoma believed to arise from Jacobson's nerve. The tumor was easily divided from the facial nerve and the chorda tympani nerve. Erosion of the promontory was noted, and the jugular foramen and posterior wall of the ear canal were preserved without destruction. The mass was successfully removed by a canal down mastoidectomy procedure, while preserving the hearing and facial nerve functions of the patient. To our knowledge, this is only the second reported case of a patient with Jacobson's nerve schwannoma.
authors.affiliation: Department of Otolaryngology--Head and Neck Surgery, College of Medicine, Hallym University, Seoul, Korea. kwc5088@dreamwiz.com
authors.forename: Chang Woo
authors.initials: CW
authors.lastname: Kim
authors.forename: Dong Hyuk
authors.initials: DH
authors.lastname: Han
authors.forename: Chang Hoon
authors.initials: CH
authors.lastname: Kim
authors.forename: Seong Jin
authors.initials: SJ
authors.lastname: Cho
authors.forename: Young-Soo
authors.initials: YS
authors.lastname: Rho
mesh_terms: D003287:Contrast Media; D003937:Diagnosis, Differential; D004428:Ear Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D004432:Ear, Middle / Q000294:innervation*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009442:Neurilemmoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed