病例资料:患儿男,11岁,体重25kg。主因发热1个月伴咽痛、咳嗽、水肿5d于2004-01-19入院。1个月前患儿无明显诱因出现不规则发热,体温高时38~39℃,伴咽痛、咳嗽,口服药物治疗,2d后热退,仍咽痛、咳。当地医院查血常规:白细胞(WBC)15.3×109/L,其中中性粒细胞(N)0.26,淋巴细胞(L)0 Case information: Children male, 11 years old, weight 25kg. Mainly due to fever 1 month with sore throat, cough, edema 5d in 2004-01-19 admission. 1 month ago, no obvious incentive for children with irregular fever, high body temperature 38 ~ 39 ℃, with sore throat, cough, oral medication, 2d after the heat back, still sore throat, cough. Local hospitals routine blood tests: white blood cells (WBC) 15.3 × 109 / L, of which 0.26 neutrophils (N), lymphocytes (L) 0