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Trochlear nerve enhancement on three-dimensional magnetic resonance imaging in Fisher syndrome
1Department of Neurology, Dokkyo University School of Medicine. htanaka@key.unizh.ch
American Journal of Ophthalmology
|September 4, 1998
Abstract
Purpose:
To examine the lesion associated with external ophthalmoplegia in Fisher syndrome using three-dimensional magnetic resonance imaging (3-D MRI).
Method:
Case report. A 65-year-old woman with Fisher syndrome was investigated by gadolinium-enhanced 3-D MRI.
Result:
The extramedullary portion of the left trochlear nerve was enhanced.
Conclusion:
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.