患儿男,11岁。一月前因跌倒呕吐少量黄色液体,发烧。给予青霉素、补液治疗,但热不退。发烧多自下午开始。夜间体温达39～40℃,翌晨可自行下降。3～4天后颈、腋淋巴结肿大、疼痛,明显触痛。半月前开始咳嗽、吐白痰、无血丝。胃纳差,乏力,喜卧,渐消瘦,二便正常,未发现皮疹及关节痛。体检:T37.5℃,P100次,R20次,BP110/70。皮肤粘膜无异常,双 Children male, 11 years old. A small amount of yellow liquid fell and vomited a month ago and had a fever. Given penicillin, fluid treatment, but not retreat. Fever from the afternoon. Night temperature of 39 ~ 40 ℃, the next morning can be self-descent. 3 to 4 days after the neck, axillary lymph nodes, pain, significant tenderness. Half a month ago began to cough, spit phlegm, bloodless. Poor appetite, fatigue, hi lying, weight loss, two will be normal, no rash and joint pain found. Physical examination: T37.5 ℃, P100 times, R20 times, BP110 / 70. No abnormal skin and mucous membranes, double