病例报告:男孩,11岁,因逐渐笨拙和学业成绩下降2年而住院。病前活跃,学习成绩较好,入院前2年发现双侧腮腺肿大和疼痛,临床诊断流行性腮腺炎,在三个星期的病程中出现中枢神经系统症状,包括呕吐、谵妄、颈强直。拟诊为流行性腮腺炎脑膜脑炎。自此病情不断恶化,学业成绩从一般水平以上降至一般水平,记忆力减退,举动笨拙,嗜睡,发胖,头痛。入院时体查,有躯干性运动失调,不能完成轮替试验、指鼻试验和跟膝胫试验,双侧巴彬斯基征阳性,双侧持续踝阵挛,双侧视乳突水肿和视野缩小。颅骨照片有脑积水迹象。脑电 Case report: The boy, age 11, was hospitalized because of a clumsiness and a two-year drop in academic performance. Pre-sick active, good academic performance, two years before admission found parotid gland enlargement and pain, clinical diagnosis of mumps, in the course of three weeks of central nervous system symptoms, including vomiting, delirium, neck stiffness. Mock diagnosed as mumps meningoencephalitis. Since then, the condition has been deteriorating. Academic performance has dropped from above average to normal, memory loss, clumsiness, lethargy, weight gain and headache. Physical examination on admission, trunk disorders, can not complete the rotation test, finger nose test and knee shin test, bilateral Bupinski sign positive, bilateral sustained ankle clonus, bilateral papillae edema and visual field Shrink. Skull photo has signs of hydrocephalus. EEG