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J Korean Neurol Assoc. 2018 May;36(2):100-102. Korean. Case Report.
Ha S , Yoon TH , Shin YY , Lee EJ , Kim BJ .
Department of Neurology, Kyung Hee University Hospital, Seoul, Korea.
Department of Neurology, Kyung Hee University Hospital at Kangdong, Seoul, Korea.
Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.

Bilateral internuclear ophthalmoplegia (INO) refers to a specific gaze abnormality of bilateral adduction deficits, often accompanied by dissociated abducting nystagmus, caused by medial longitudinal fasciculus lesions usually due to multiple sclerosis or stroke. We report a 63-year-old man with clinical features of Miller-Fisher syndrome (MFS), consisting of ataxia, areflexia, and external ophthalmoplegia which mimicked bilateral-INO without an identifiable central lesion. Although bilateral adduction deficits are usually caused by central lesions, peripheral nervous damage by MFS is needed to be considered.

Copyright © 2019. Korean Association of Medical Journal Editors.