내측연수경색으로 인한 반대측 중추성 안면마비
Central Facial Palsy due to Medial Medullary Infarction
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The 'classic' triad of medial medullary infarction (MMI) consists of contralateral hemiplegia, loss of posterior column sensation on the contralateral side and involvement of the tongue on the ipsilateral side. Facial muscle is usually spared in MMI. A 51-year-old patient with MMI came to our department. His major clinical manifestations were contralateral hemiparesis, and contralateral central type facial palsy. He had neither sensory change nor tongue deviation. This report support the hypothesis that part of the corticobulbar fibers supplying the lower facial muscles descend ipsilaterally in the ventromedial part of the medulla and then, after decussation, ascend rostrally to the facial nucleus in the dorsolateral part of the medulla.
Abstract
The 'classic' triad of medial medullary infarction (MMI) consists of contralateral hemiplegia, loss of posterior column sensation on the contralateral side and involvement of the tongue on the ipsilateral side. Facial muscle is usually spared in MMI. A 51-year-old patient with MMI came to our department. His major clinical manifestations were contralateral hemiparesis, and contralateral central type facial palsy. He had neither sensory change nor tongue deviation. This report support the hypothesis that part of the corticobulbar fibers supplying the lower facial muscles descend ipsilaterally in the ventromedial part of the medulla and then, after decussation, ascend rostrally to the facial nucleus in the dorsolateral part of the medulla.