1　病史摘要患儿女性 ,7岁。因发热 6天、尿频 3天伴皮疹入院。入院前 6天患儿在无明显诱因下出现发热 ,体温 38℃左右 ,无咳嗽、吐泻 ,高热时诉上肢不适。当地医院予以抗感染和对症处理 ,2天后停药 ,当日夜间体温骤升至 39 4℃ ,同时出现尿频 ,家长发现患儿四肢躯干出现少量红 A history of children and adolescents, 7 years old. 6 days due to fever, frequent urination 3 days with rash admission. 6 days before admission, children with no obvious incentive to fever, body temperature around 38 ℃, no cough, vomiting and diarrhea, hypersensitivity supine upper limb discomfort. Local hospitals to be anti-infective and symptomatic treatment, 2 days after stopping the day temperature suddenly rose to 39 4 ℃, while frequent urination, the parents found that children with a small amount of limbs trunk red