title: Reversible hearing loss from cerebellopontine angle tumors.
abstract: We report two patients who presented with a dramatic recovery from severe sensorineural hearing loss after total surgical removal of cerebellopontine angle tumors (meningioma and jugular foramen neurinoma). The factors that differentiate these "non-acoustic tumors" in relation to the prognosis for hearing are discussed. A surgical approach that maintains the labyrinthine structure and preserves the arachnoid membrane of the superior cerebellopontine angle cistern during tumor removal is stressed.
authors.affiliation: Department of Neurosurgery, University of São Paulo School of Medicine, Brazil.
authors.forename: E A
authors.initials: EA
authors.lastname: Vellutini
authors.forename: O L
authors.initials: OL
authors.lastname: Cruz
authors.forename: O P
authors.initials: OP
authors.lastname: Velasco
authors.forename: A
authors.initials: A
authors.lastname: Miniti
authors.forename: G M
authors.initials: GM
authors.lastname: Almeida
mesh_terms: D000328:Adult; D000368:Aged; D001299:Audiometry; D002528:Cerebellar Neoplasms / Q000150:complications* / Q000601:surgery; D002530:Cerebellopontine Angle / Q000601:surgery; D005260:Female; D006319:Hearing Loss, Sensorineural / Q000209:etiology* / Q000503:physiopathology; D006801:Humans; D008297:Male; D008579:Meningioma / Q000150:complications / Q000601:surgery; D009442:Neurilemmoma / Q000150:complications / Q000601:surgery; D012074:Remission Induction