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KMID : 0359720100280010050
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Journal of the Korean Neurological Association
2010 Volume.28 No. 1 p.50 ~ p.52
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Lambert-Eaton Myasthenic Syndrome (LEMS) Presented With Ocular Symptoms
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Han Woo-Ho
Seok Jung-Im
Lee Kyu-Chul
Kwon Oh-Dae
Kim Sook-Young
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Abstract
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Lambert-Eaton myasthenic syndrome (LEMS) is characterized clinically by fluctuating muscular weakness; presentation with ocular symptoms is unusual. A 60-year-old man had developed diplopia and ptosis 2 years previously. The findings of a neurologic examination were normal except for bilateral ptosis and ophthalmoplegia. The amplitude of compound muscle action potentials recorded on the abductor digiti minimi increased (by more than 500%) during 50-Hz stimulation. This case demonstrates that LEMS should be included in the differential diagnosis of myasthenic symptom confined to the ocular muscles.
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KEYWORD
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Lambert-Eaton Myasthenic Syndrome, Diplopia, Ptosis
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