[Percutaneous renal surgery apart from calculi. Current possibilities and limitations].

The purpose of this study is to describe the technical modalities and to evaluate the results of percutaneous renal surgery for ureteropelvic stenosis, pyelocaliceal diverticula, renal cysts and urothelial tumors of the kidney. Based on a review of literature and although the number of the reported cases is limited, the results indicate a great deal of variability in the success of these technics depending on the pathology.