[Percutaneous resection of benign renal cysts].

Six patients carrying bulky renal cysts located in the kidney lower pole were treated by percutaneous resection of the cystic wall. No complications were observed during the peri and postoperational period. In all cases disappearance of symptoms was observed, and the total success rate (absence of residual cavity) recorded was 4/6, two cases presenting persistence of a small residual cavity which originated one case of relapse. The paper presents the technique used, and the indications and possible therapeutic actions for the treatment of simple kidney cysts are discussed.