Methods Twenty-eight cases of ureteric stricture were treated partly with direct dilation by percutaneous renal pelvis puncture or retrograde dilation through urethra with stent implantation.

• 方法对28例输尿管良恶性狭窄患者，采用经皮肾穿刺顺行法或经尿道逆行法插管，行球囊扩张后支架置入。