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Research in Vestibular Science 2014;13(1): 24-27. |
양측 외사시핵간안근마비에서 보인 상향안진 |
, , , 박덕수1, 강여정2, 이태경2, 양광익1 |
순천향대학교 의과대학 1천안병원 신경과학교실, 2부천병원 신경과학교실 |
Upbeat Nystagmus in Association with Wall-Eyed Bilateral Internuclear Ophthalmoplegia |
Duck Su Park, Yeo Jeong Kang, Tae Kyeong Lee, Kwang Ik Yang |
1Department of Neurology, Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea. neurofan@schmc.ac.kr 2Department of Neurology, Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea. |
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ABSTRACT |
A 54-year-old man presented with primary position upbeat nystagmus and wall-eyed bilateral internuclear ophthalmoplegia. He also showed bilateral limb ataxia and impaired horizontal gaze. Upbeat nystagmus obeyed Alexander’s law and attenuated by visual fixation and disappeared by convergence. Brain magnetic resonance imaging showed acute infarction in the bilateral paramedian midbrain involving the crossing of brachium conjunctivum. Multiple mechanisms including the interruption of central vestibulo-ocular projections from anterior canal may be postulated in upbeat nystagmus of this patient. |
Keywords:
Ophthalmoplegia; Nystagmus; Cerebral infarction |
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