A Case of Trochlear Nerve Schwannoma Presenting with Binocular Diplopia
Journal of the Korean Ophthalmological Society
; : 1812-1816, 2016.
Article
em Ko
| WPRIM
| ID: wpr-159672
Biblioteca responsável:
WPRO
ABSTRACT
PURPOSE:
To report a case of unilateral trochlear nerve schwannoma in a patient without neurofibromatosis. CASESUMMARY:
A 58-year-old male presented with acute onset of diplopia which developed 10 days prior. Alternate prism cover test, ductions and versions and Bielschowsky three-step test were compatible with left superior oblique muscle palsy. High-resolution magnetic resonance imaging showed a 6-mm-sized lobulated mass in the cisternal segment of the left trochlear nerve passing lateral to the brainstem. An additional thin-section gadolinium-enhanced orbit magnetic resonance imaging showed definite enhancement in the entire portion of the lobulated mass, compatible with a trochlear nerve schwannoma. Diplopia was managed conservatively with prism glasses and regular follow-up examinations were recommended without further treatment.CONCLUSIONS:
A trochlear nerve tumor should be considered in adults who develop diplopia associated with acquired superior oblique muscle palsy.Palavras-chave
Texto completo:
1
Índice:
WPRIM
Assunto principal:
Órbita
/
Paralisia
/
Nervo Troclear
/
Tronco Encefálico
/
Imageamento por Ressonância Magnética
/
Seguimentos
/
Neurofibromatoses
/
Diplopia
/
Óculos
/
Telescópios
Tipo de estudo:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Adult
/
Humans
/
Male
Idioma:
Ko
Revista:
Journal of the Korean Ophthalmological Society
Ano de publicação:
2016
Tipo de documento:
Article