病例:女,3岁。近6天发热,以下午及夜间为著,眼痛,全身皮疹,伴尿频、尿急、尿痛,夜尿最多达20余次,均为点滴样,色深黄,尿少(200ml/日),无肉眼血尿。入院前两天双眼睑水肿,继之躯干、四肢水肿。既往无肾脏病史。查体:体温38.5℃,血压14/10kPa,躯干皮肤可见少许红色斑丘疹,右钼颌下淋巴结肿大(2cm× Case: Female, 3 years old. Nearly 6 days of fever, as the afternoon and night, eye pain, systemic rash, with frequent urination, urgency, dysuria, nocturnal up to 20 times, are bit sample, dark yellow, dark urine (200ml / day ), No gross hematuria. Eyelid edema two days before admission, followed by the trunk, limb edema. No previous history of kidney disease. Physical examination: body temperature 38.5 ℃, blood pressure 14 / 10kPa, a small red rash can be seen on the skin of the trunk, right molybdenum submandibular lymph nodes (2cm ×