近几年,我们遇到5例用左旋咪唑驱虫后并发散发性脑炎,现报道如下。临床资料:5例中,男1例,女4例;发病年龄25～46岁,既往素健。驱虫方法采用睡前顿服左旋咪唑150mg。服药与发病的间隔时间为:2天1例,10～20天4例。临床表现为,神志清2例,嗜睡1例,昏迷1例,神情呆滞1例;Ⅶ、Ⅳ颅神经瘫痪2例,左侧肢体轻、中度瘫痪5例;病理征阳性3例,视乳头水 In recent years, we encountered 5 cases of levamisole demyelination associated with sporadic encephalitis, are reported below. Clinical data: 5 cases, 1 males and 4 females; age of onset of 25 to 46 years old, formerly healthy. Deworming method using bedtime service levamisole 150mg. Medication and the incidence of interval time: 2 days in 1 case, 10 to 20 days in 4 cases. The clinical manifestations were as follows: 2 cases of delirium, 1 case of lethargy, 1 case of coma, 1 case of sluggishness; 2 cases of cranial nerve paralysis of Ⅶ and Ⅳ, 5 cases of mild and moderate paralysis of left limb; 3 cases of positive pathology, water