回顾分析２１例肾囊肿病例，囊肿大小３７ｍｍ×４４ｍｍ至１０６ｍｍ×１０８ｍｍ，在Ｂ超引导下经皮穿刺注射无水乙醇治疗。所有病例均１次穿刺成功，抽出囊液４０～８００ｍｌ，３个月后复查，８０．９％（１７／２１）囊肿消失，２例经第２次穿刺后囊肿消失，１年期复查８８．９％（１６／１８）的囊肿消失，症状均得以改善，主要并发症为一过性的腰腹灼、胀痛以及醉酒样反应。认为该法可以作为治疗肾囊肿的首选方法，值得推广 Retrospective analysis of 21 cases of renal cysts, cyst size 37mm × 44mm to 106mm × 108mm, under the guidance of B-percutaneous puncture and injection of ethanol. All cases were successful in one puncture. The cystic fluid was withdrawn from 40 to 800 ml. After 3 months, 80.9% (17/21) of the cysts disappeared. Two of the cysts disappeared after the second puncture and were reviewed in one year. 9% (16/18) of the cysts disappeared and the symptoms improved. The main complications were transient lumbar epiglottis, pain and drunk-like reactions. That the law can be used as the preferred method of treatment of renal cysts, it is worth promoting