患儿,男,1岁10个月。因高热、呕吐8天入院。患儿喷射性呕吐,为胃内容物,日4至5次。入院体检:T39℃,P120次/分,呈嗜睡状,前囟门未闭合,对边直径1×1.5cm前囟饱满。双侧瞳孔等大等圆,对光反射迟钝。颈项强直。双肺呼吸音清,未闻及干湿啰音,双侧膝腱反射减弱,双侧巴氏征阳性、布氏征阳性。脑脊液:外观无色透明,细胞数44×10~9/L,糖1～5管 Children, male, 1 year old 10 months. Due to high fever, vomiting admitted to hospital for 8 days. Children with vomiting, stomach content, 4 to 5 times a day. Admission examination: T39 ℃, P120 beats / min, was drowsy, the anterior fontanel is not closed, on the side of the diameter of 1 × 1.5cm full of anterior fontanelle. Big pupils and other bilateral round, slow reflection of light. Neck stiffness. Respiratory sound clear lungs, did not smell and wet and dry rales, bilateral knee tendon reflexes decreased, bilateral Pap test positive, positive Brinell sign. Cerebrospinal fluid: the appearance of colorless and transparent, the number of cells 44 × 10 ~ 9 / L, sugar 1 to 5 tubes