Facial nerve schwannoma in revision stapedotomy surgery.
We describe a male patient who presented a progressive conductive unilateral hearing loss 20 years after otosclerosis surgery. Computed tomography (CT) scan and magnetic resonance imaging (MRI) findings suggested a facial schwannoma in its tympanic segment. At the time of revision surgery, a facial schwannoma was found to originate at the tympanic segment, pushing the prosthesis out of the oval window fenestration. The Teflon-piston was repositioned with difficulties in the central platinotomy, and the facial schwannoma was left intact.
D001707:Biopsy, Needle; D003390:Cranial Nerve Neoplasms / Q000473:pathology / Q000601:surgery*; D005154:Facial Nerve; D005500:Follow-Up Studies; D006314:Hearing Loss, Conductive / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009442:Neurilemmoma / Q000473:pathology / Q000601:surgery*; D010040:Otosclerosis / Q000175:diagnosis / Q000601:surgery*; D038781:Otoscopy / Q000379:methods; D012086:Reoperation; D018570:Risk Assessment; D013201:Stapes Surgery / Q000379:methods*; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome