Rinshō shinkeigaku = Clinical neurology
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A 74-year-old man presented sudden onset hoarseness and dysphagia. Two months before this event, he had developed arthralgia of the shoulders, elbows, hands and foot and pleuritis which had been alleviated by a treatment with prednisolone. On admission, the patient could not phonate nor swallow at all. ⋯ The syndrome of aphonia and dysphagia due to paralysis of the unilateral soft palate and vocal cord is called Avellis syndrome. This syndrome has been reported mainly in relation with the infarction of lateral medulla. The present case shows that Avellis syndrome can be produced by mononeuritis of the vagus nerve.