病人,男,19岁,战士。入院前3天发热39℃以上,轻度头痛。入院前1天体温已降至基本正常,但发现病人表情呆板,反应迟钝,少动懒言,不会解裤带及入院。检查:体温37.2℃,脉搏100次,内科一般体检正常。意识清楚,简短语句清晰,表情呆板,无欲状态,四肢伸屈肌张力对称性增高,无脑膜刺激征,余均阴性。血常规正常。即日脑脊液压力180mm 液柱,微黄,白细胞6个, Patient, male, 19 years old, warrior. 3 days before admission, fever over 39 ℃, mild headache. One day before admission, the body temperature has dropped to normal, but the patient’s facial expression is dull, unresponsive and lazy to move. Check: body temperature 37.2 ℃, pulse 100 times, normal medical examination. Consciousness, a brief statement clear, dull, no state of desire, extremity flexor flexor tension increased symmetry, no meningeal irritation, the remaining were negative. Normal blood. Right now cerebrospinal fluid pressure column 180mm, yellow, white blood cells 6,