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首页> 外文期刊>The neurologist. >Isolated Medial Longitudinal Fasciculus Midbrain Infarction Mimicking Medial Rectus Paralysis
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Isolated Medial Longitudinal Fasciculus Midbrain Infarction Mimicking Medial Rectus Paralysis

机译：孤立的内侧纵向坐着中脑梗死模仿内侧直肌瘫痪

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Introduction: Medial longitudinal fasciculus infarction is rare in clinical practice and generally accompanied by brain tissue damage around the medial longitudinal fasciculus. Isolated medial longitudinal fasciculus midbrain infarction was seldom reported. Case Report: An 81-year-old man with hypertension was admitted to our hospital because of sudden onset diplopia. A neurological examination revealed right adduction paresis without abducting nystagmus in the left eye, whereas the convergence reflex was normal. Diffusion-weighted magnetic resonance imaging demonstrated a small acute lacunar medial longitudinal fasciculus infarction in the right midbrain at the level of the inferior colliculus. Diffusion-tensor imaging showed a reduction of the right medial longitudinal fasciculus. Medial longitudinal fasciculus infarction is rare and occurs most commonly in the pons. The authors report on a case of isolated medial longitudinal fasciculus infarction that was diagnosed because of sudden diplopia and manifested as simple internal rectus paralysis with no abducting nystagmus on the contralateral side of the lesion. Conclusion: Isolated midbrain - medial longitudinal fasciculus infarction without contralateral abducting nystagmus is a rare occurrence. It can be differentiated from partial oculomotor palsy by assessing the convergence reflex, primary gaze, and diffusion-tensor imaging.
机译：导言：内侧纵束梗死在临床上很少见，通常伴有内侧纵束周围的脑组织损伤。孤立性内侧纵行束中脑梗塞很少报道。病例报告：一名81岁男性高血压患者因突发性复视入院。神经学检查显示右眼内收麻痹，左眼无外展性眼球震颤，而会聚反射正常。磁共振弥散加权成像显示右中脑下丘有一个小的急性腔隙性内侧纵束梗死。弥散张量成像显示右侧内侧纵束减少。内侧纵束梗死很少见，最常见于桥脑。作者报告了一例孤立性内侧纵束梗死，诊断为突发性复视，表现为单纯性内直肌麻痹，病变对侧无外展性眼球震颤。结论：无对侧外展性眼球震颤的孤立性中脑-内侧纵束梗死是罕见的。通过评估会聚反射、主要注视和扩散张量成像，可以将其与部分动眼神经麻痹区分开来。

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