Atypical Manifestation of Vestibular Schwannoma
Int. arch. otorhinolaryngol. (Impr.)
;
17(4): 419-420, 2013.
Article
in English
| LILACS
| ID: lil-695135
ABSTRACT
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...
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Neuroma, Acoustic
/
Dizziness
/
Hearing Loss
Limits:
Female
/
Humans
Language:
English
Journal:
Int. arch. otorhinolaryngol. (Impr.)
Journal subject:
Otolaryngology
Year:
2013
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Hospital do Servidor Publico Municipal de Sao Paulo/BR
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