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KMID : 0858420070090020165
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Korean Journal of Stroke
2007 Volume.9 No. 2 p.165 ~ p.167
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Lateral Medullary Infarction Presented with Axial Lateropulsion as a Predominant Initial Symptom
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Park Kang-Min
Bae Jong-Seok
Kim Sang-Jin
Kim Eung-Gyu
Lee Sung-Hoon
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Abstract
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Axial lateropulsion has been described as one of the symptoms of lateral medullary infarction (LMI). However, isolated body lateropulsion without other medullary symptoms is unusual in LMI. Here, we report a case of LMI presented with ipsilateral axial lateropulsion as a prominent presenting symptom. A 64-year-old man came to our department because of his unsteady gait. Neurological examination revealed axial lateropulsion to the right and mild gaze-evoked nystagmus to the left. The other neurological examination was unremarkable. Brain MRI indicated an acute lesion on the right lateral medulla. In addition, CT angiography denoted an occlusion in the distal portion of the right vertebral artery. He was treated with aspirin 100 mg daily. His lateropulsion improved gradually within two weeks. Axial lateropulsion may occur in LMI owing to the involvement of the vestibular pathway, spinocerebellar tract, or olivocerebellar climbing fiber. (Korean J Stroke 2007;9:165-167)
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KEYWORD
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Lateral medullary infarction, Axial lateropulsion, Initial symptom
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