患者 ,男 ,4 0岁。因无痛性血尿 1年加重 3个月入院。主诉 :尿血凝块及腐肉样物排出 ,伴尿频、尿急 ,乏力、周身不适。查体 :下腹部压痛 ,无反跳痛。超声检查 :采用 EUB- 30 5型超声显像仪 ,探头频率3.5 MHz。超声所见 :双肾集合系分离 (图 1) ,双侧输尿管均扩张 ,内径约 0 .9c Patient, male, 40 years old. 1 year due to painless hematuria increased 3 months admitted to hospital. Chief Complaint: Hematuria clot and caries-like excretion, with frequent urination, urgency, fatigue, and overall discomfort. Physical examination: lower abdominal tenderness, no rebound pain. Ultrasonography: EUB-30 type 5 ultrasound imaging instrument, probe frequency 3.5 MHz. Ultrasound findings: double renal collection system separation (Figure 1), bilateral ureteral dilatation, diameter of about 0 .9c