H. Tanaka et al., TROCHLEAR NERVE ENHANCEMENT ON 3-DIMENSIONAL MAGNETIC-RESONANCE-IMAGING IN FISHER-SYNDROME, American journal of ophthalmology, 126(2), 1998, pp. 322-324
PURPOSE: To examine the lesion associated with external ophthalmoplegi
a in Fisher syndrome using three-dimensional magnetic resonance imagin
g (3-D MRI). METHOD: Case report. A 65-year-old woman with Fisher synd
rome was investigated by gadolinium-enhanced 3-D MRI. RESULT: The extr
amedullary portion of the left trochlear nerve was enhanced. CONCLUSIO
N: Contrast-enhanced 3-D MRI revealed that the lesion responsible for
the external ophthalmoplegia in Fisher syndrome is located in the extr
amedullary portion of the trochlear nerve. (Am J Ophthalmol 1998;126:3
22-324. (C) 1998 by Elsevier Science Inc. All rights reserved.).