Unilateral cochleovestibular nerve compression syndrome in a patient with bilateral IAC osteoma.
Eur Ann Otorhinolaryngol Head Neck Dis
; 137(3): 213-216, 2020 May.
Article
em En
| MEDLINE
| ID: mdl-31866273
ABSTRACT
INTRODUCTION:
Osteomas of the internal auditory canal are rarely reported in the literature. Patients may complain of disabling symptoms of dizziness, hearing loss, and vestibular dysfunction. We report the case of a patient with bilateral osteomas of the internal auditory canal (IAC) associated with bilateral neurovascular compression mainly affecting the right cochleovestibular nerve (VIII) and right anterior inferior cerebellar artery (AICA). OBSERVATION This 75-year-old woman patient complained of disabling paroxysmal vertigo, typewriter tinnitus and hearing loss of the right ear. Temporal bone computed tomography showed bilateral osteoma arising from the posterior superior wall of the IAC. MRI sequences of the right VIII demonstrated compression by the right AICA against the inferior wall of the narrowed IAC. Treatment with oxcarbazepine allowed marked and lasting improvement of the patient's symptoms.CONCLUSION:
To our knowledge, this is the first description of an ipsilateral neurovascular compression syndrome of the VIII secondary to the presence of an osteoma narrowing the IAC.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Osteoma
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Neoplasias Cranianas
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Osso Temporal
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Nervo Vestibulococlear
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Síndromes de Compressão Nervosa
Limite:
Aged
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Female
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Humans
Idioma:
En
Revista:
Eur Ann Otorhinolaryngol Head Neck Dis
Ano de publicação:
2020
Tipo de documento:
Article