例1,女性,25岁,于1981年2月23日入院。患者2月13日受凉后全身不适,鼻塞,上唇起疱疹。按“感冒”治疗好转。2月22日下午右侧下肢麻木无力,晚8时头痛,发热,左眼视物不清,眼睑下垂。查体:体温38.6℃。唇有一簇疱疹已结痂。心肺腹均无异常发现。神志清,左眼裂小,眼睑下垂,瞳孔左侧5mm,光反射消失,右侧瞳孔3mm,光反射良好,左眼球固定,右眼球活动良好。双眼底正常。右侧肢体肌力3～4级,右巴氏征阳性,无脑膜刺激征。有关化验检查、胸片、心电图、脑超声均正常。脑电图双侧额颞区有4～7次/秒θ波,提示中度异常。2月23日脑脊液:多数红细胞、蛋白70mg%,余正常,3月18日脑脊液:压力320mmH_2O,蛋白90mg%,余正常。入院后给以激素、阿糖胞苷等治疗,病人逐 Example 1, female, 25 years old, was admitted on February 23, 1981. Patients February 13 after the cold systemic discomfort, stuffy nose, her upper lip herpes. Press “cold” treatment improved. On the afternoon of February 22, the right lower limb numbness weakness, headache at 8 pm, fever, left eye blurred vision, ptosis. Physical examination: body temperature 38.6 ℃. Herpes have a crust of her lips. No abnormal findings of cardiopulmonary abdominal. Consciousness, small left eye cleft, ptosis, left pupil 5mm, light reflex disappeared, the right pupil 3mm, light reflection is good, the left eye fixed, right eye activity is good. Eyes are normal. Right limb muscle strength of 3 to 4, right Pap’s sign positive, no meningeal irritation. The laboratory tests, chest radiography, electrocardiogram, brain ultrasound were normal. EEG bilateral frontotemporal area with 4 to 7 times / second θ wave, suggesting moderate abnormalities. February 23 cerebrospinal fluid: the majority of red blood cells, protein 70mg%, more than normal, March 18 cerebrospinal fluid: pressure 320mmH2O, protein 90mg%, more than normal. After admission to the hormone, cytarabine and other treatment, the patient by