患者，男性，１６岁，因周身疼痛５年多，行走稍缓慢２年，肉眼血尿２次而入院。患者于１９９３年起无明显诱因下出现双下肢疼痛，时而从髓部起至双足部，时而从双膝部关节起至双足部，多于行走及活动时症状加重，休息后症状消失。无关节肿胀、晨僵、发热。外院拟诊“类风湿性 The patient, male, aged 16, had more than 5 years of pain in his whole body, had walked slowly for 2 years, and had gross hematuria twice before admission. The patient developed pain in both lower extremities with no apparent incentive since 1993, sometimes from the medullary to the bipedal, sometimes from the knees to the bipedal, more than walking and activity, and the symptoms disappeared after the rest. No joint swelling, morning stiffness, fever. Outside the hospital diagnosed "rheumatoid