Trochlear nerve enhancement on three-dimensional magnetic resonance imaging in Fisher syndrome.
OBJECTIVE
To examine the lesion associated with external ophthalmoplegia in Fisher syndrome using three-dimensional magnetic resonance imaging (3-D MRI).


METHODS
Case report. A 65-year-old woman with Fisher syndrome was investigated by gadolinium-enhanced 3-D MRI.


RESULTS
The extramedullary portion of the left trochlear nerve was enhanced.


CONCLUSIONS
Contrast-enhanced 3-D MRI revealed that the lesion responsible for the external ophthalmoplegia in Fisher syndrome is located in the extramedullary portion of the trochlear nerve.
Tanaka
H
H
Department of Neurology, Dokkyo University School of Medicine. htanaka@key.unizh.ch
Yuki
N
N
Hirata
K
K
D000368:Aged; D003287:Contrast Media; D003389:Cranial Nerve Diseases / Q000175:diagnosis; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D008279:Magnetic Resonance Imaging; D019846:Miller Fisher Syndrome / Q000175:diagnosis*; D014321:Trochlear Nerve / Q000473:pathology*
D003287:Contrast Media; D019786:Gadolinium DTPA