1　临床资料　患者女,16岁,回族。因“头痛,头晕1周,视物成双5 d”被收入院。入院前1周无明显诱因自觉双颞部头痛、头晕、全身乏力、恶心、发热。2 d后视物模糊、成双,继而呕吐频繁且进食后加重,腹胀,精神差,无肢体麻木无力。发病前有“感冒”史。查体:内科检查无异常。神经系 1 Clinical data Female patient, 16 years old, Hui. Because of “headache, dizziness 1 week, depending on the material into double 5 d” was admitted to the hospital. One week before admission no obvious incentive to consciously double-temporal headache, dizziness, generalized weakness, nausea, fever. 2 d blurred vision, in pairs, and then frequent vomiting and eating aggravated, bloating, poor spirit, no limb numbness. Before the onset of a “cold” history. Physical examination: no abnormalities. Nervous system