Int Arch Otorhinolaryngol 2014; 18 - a2423
DOI: 10.1055/s-0034-1388819

Sudden Deafness as Initial Manifestation Acoustic Neurinoma: A Case Report

Larissa Claret de Lima 1, Camillus Magalhaes Carneiro dos Santos 1, Paulo Henrique Bicalho Barcelos 1, Thais Knoll Ribeiro de Azevedo Marques 1, Thiago Andrade Fraga 1, Torcuato Sanchez Rojas Neto 1
  • 1Hospital Nossa Senhora de Lourdes

Introduction: The vestibular schawannoma or acoustic neurinoma is a slow growing benign tumor that affects rather division superior vestibular nerve and represents 7% of all the intracranial tumors and 80% affecting the cerebellopontine angle. The initial symptoms in the great majority are unilateral and progressive hypoacusis, tinnitus, and dizziness, being that sudden deafness, characterized by neurosensory hearing loss higher than 30 dB at three or more contiguous frequencies, open frame only in 4% of the cases.

Objectives: This study aims to report a case of acoustic neurinoma that initially presented with sudden hearing loss.

Case Report: A 61-year-old male patient (J. L. V. B.), white, with no comorbidities sought otorhinolaryngology assistance referring hearing loss sudden onset right. After physical examination showed no changes audiometry was requested evidencing severe hearing loss at all frequencies in the right ear. The realization of the resonance showed a tumor in the region of the cerebellopontine angle corresponding to the acoustic neurinoma stage III. The patient was referred to the team of neurosurgery who opted for surgery.

Conclusion: The acoustic neuroma is a benign tumor that originates from the cells of Schwann. He declares himself with a hearing loss, tinnitus, and dizziness. Diagnosis must be made through audiometry and resonance to determine the location of the tumor. Treatment depends on the size and location of the tumor. An otorhinolaryngologist should always bear in mind the differential diagnosis of sudden deafness and immediately start the investigation of the etiology of the framework for the conduct and appropriate therapy to be taken, especially with the realization of the imaging examination (resonance) complementary audiometry.