1临床资料患者男,37岁,右肾盂输尿管连接部狭窄术后4年,全程肉眼血尿3d,伴尿痛,无尿频、尿急,无畏寒发热及腰痛。查体:腹平软,无压痛,无反跳痛,两肾、输尿管及膀胱区无叩、压痛,头颈、四肢躯干各部未扪及结节,亦无其他阳性体征。B超:膀胱形态轮廓正常,顶部左侧见一个大小3.5cm 1 Clinical data Patient male, 37 years old, right ureteropelvic junction stenosis 4 years after surgery, the whole eye with hematuria 3d, with dysuria, no urinary frequency, urgency, aversion to fever and low back pain. Physical examination: abdominal soft, no tenderness, no rebound pain, kidney, ureter and bladder area without knocking, tenderness, head and neck, limbs and limbs are not palpable nodules, nor other positive signs. B super: normal bladder shape outline, the top left to see a size of 3.5cm