中文摘要：

目的：对比在超声引导下经皮肾囊肿穿刺硬化治疗两种方法的临床疗效。方法：将100例单纯性肾囊肿患者随机分为对照组与试验组各50例。对照组采用常规经皮肾囊肿穿刺硬化治疗,即超声引导下肾囊肿单次穿刺注射无水乙醇治疗;试验组实施置管多次硬化治疗,采用超声引导下肾囊肿穿刺注射无水乙醇后置入猪尾巴导管持续引流、多次注入无水乙醇治疗。结果：于随访2年进行超声复查,两组患者治肾囊肿均明显缩小或消失。两组患者治疗后治愈率及复发率比较差异均有统计学意义（P〈0.05）。结论：置管多次硬化治疗较常规硬化治疗肾囊肿,复发率更低,效果更显著。

英文摘要：

Objective： To investigate the clinical efficacy of two different sclerotherapy of pure renal cysts by absolute alcohol injection by ultrasound guided. Method： 100 patients with pure renal cyst were randomly divided into control group （ n=50 ） and experimental group （ n=50 ） .The control group used absolute alcohol injection for sclerotherapy of pure renal cysts by ultrasound guided, only one time, the experimental group used constant drainaged with pigtail tube by ultrasound guided and treated by sclerotherapy with absolute alcohol injection, three times or more. The adverse effects and effective rates of the two groups were observed and compared. Result： All patients were followed up for 24 months or more, two groups of patients with renal cyst were significantly shrink or disappear. After treatment, the cure rate and recurrence rate were compared between the two groups, the differences were statistically significant （ P〈0.05 ） . Conclusion： Constant drainaged with pigtail tube by ultrasound guided and treated by sclerotherapy with absolute alcohol injection are very effective and safe in the treatment of pure renal cyst.