1临床资料患儿,女,6岁,因四肢关节间断肿痛伴发热2个月入院。患儿2个月前无明显诱因出现双踝关节肿痛,为持续性钝痛,关节屈伸不利,伴发热,无咽痛、皮疹,体温波动于37.4℃～38℃之间,继之出现双腕关节肿痛,活动不利,曾就诊于数家医院,诊断为“风湿热”、“幼年类风湿关节炎”,给 1 clinical data children, female, 6 years old, due to joint swelling and pain of the limbs with fever 2 months admitted. Children 2 months ago, no obvious incentive to cause double ankle joint swelling and pain, persistent dull pain, joint flexion and extension disadvantage, with fever, no sore throat, rash, body temperature fluctuations between 37.4 ℃ ~ 38 ℃, followed by double Wrist pain, adverse activities, had visited several hospitals, diagnosed as “rheumatic fever”, “juvenile rheumatoid arthritis,” to