title: Dumbbell-shaped jugular foramen schwannoma.
abstract: The authors present a case of dumbbell-shaped schwannoma arising from the vagus nerve. A 40-year-old woman was admitted with a 3-month history of hearing loss on the left ear without vertigo. Neuro-otological examinations revealed retrocochlear deafness with abnormal left vestibular function. Magnetic resonance imaging revealed a dumbbell-shaped tumor of the jugular foramen. The tumor was removed through a cervical-transmastoid approach using Cavitoron ultrasonic surgical aspiration. Two months after the operation, the patient's hearing loss had improved, although she still had some aspiration of saliva and hoarseness.
authors.affiliation: Department of Otolaryngology, Asahikawa Medical School, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Takahashi
authors.forename: T
authors.initials: T
authors.lastname: Adachi
authors.forename: K
authors.initials: K
authors.lastname: Sako
mesh_terms: D000328:Adult; D001301:Audiometry, Pure-Tone; D003390:Cranial Nerve Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D003638:Deafness / Q000209:etiology; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D009442:Neurilemmoma / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D014630:Vagus Nerve