The first eletrocnic Journal of Otolaryngology in the world
ISSN: 1809-9777

E-ISSN: 1809-4864

 
1828 

Year: 2013  Vol. 17   Num. 4  - Oct/Dec - (16º)
DOI: 10.1055/s-0033-1351673
Section: Case Report
 
Atypical Manifestation of Vestibular Schwannoma
Author(s):
Guilherme Webster, Rui Carlos Ortega Filho, Antonini de Oliveira e Sousa, Márcio Cavalcante Salmito, Mariana Lopes Favero, Patrícia Maria Sens Marques
Key words:
neuroma - acoustic - dizziness - hearing loss
Abstract:

Introduction: Vestibular schwannoma (also known as acoustic neuroma) is a benign tumor whose cells are derived from Schwann sheaths, which commonly occurs from the vestibular portion of the eighth cranial nerve. Furthermore, vestibular schwannomas account for ∼8% of intracranial tumors in adults and 80 to 90% of tumors of the cerebellopontine angle. Its symptoms are varied, but what stands out most is a unilateral sensorineural hearing loss, with a low index of speech recognition.

Objective: Describe an atypical manifestation of vestibular schwannoma.

Case Report: The 46-year-old woman had vertigo and binaural hearing loss and fullness, with ear, nose, and throat examination suggestive of cochlear injury. After 6 months, the patient developed worsening of symptoms and onset of right unilateral tinnitus. In further exams the signs of cochlear damage remained, except for the vestibular test (hyporeflexia). Magnetic resonance imaging showed an expansive lesion in the right cerebellopontine angle.

Discussion: This report warns about the atypical manifestations of vestibular schwannoma, which must always be remembered in investigating and diagnosing hearing loss.

All right reserved. Prohibited the reproduction of papers
without previous authorization of FORL © 1997- 2024