Reversible cochleo-vestibular deficits in two cases of jugular foramen tumor after surgery.
Primary jugular foramen (JF) tumor, such as glomus jugular tumor or JF schwannoma, may manifest as a lower cranial nerve deficit; in addition, it can be accompanied by deafness or vertigo if it affects the cranial nerve (CN) VIII. Recently, we encountered JF schwannoma 1 and glomus jugulare tumor 1. Both cases invaded the adjacent cerebellopontine angle, leading to cochleo-vestibular deficits prior to the operation. After surgery, recovery of the audiovestibular function, including hearing, auditory brainstem response and caloric response, was anticipated in both patients. Therefore, cochleo-vestibular deficits in JF tumors can be attributed to compression neuropathy, rather than tumor infiltration.
D000328:Adult; D001299:Audiometry; D003390:Cranial Nerve Neoplasms / Q000556:secondary* / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D005925:Glomus Jugulare Tumor / Q000473:pathology / Q000601:surgery*; D006319:Hearing Loss, Sensorineural / Q000209:etiology / Q000601:surgery; D003639:Hearing Loss, Sudden / Q000175:diagnosis / Q000209:etiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009442:Neurilemmoma / Q000556:secondary* / Q000601:surgery*; D020127:Recovery of Function; D019292:Skull Base Neoplasms / Q000473:pathology / Q000601:surgery*; D016896:Treatment Outcome; D014724:Vestibular Function Tests; D000159:Vestibulocochlear Nerve / Q000473:pathology*