[Operative possibilities for tumors in single kidneys with particular reference to in situ perfusion (author's transl)].

Surgical removal of malignant tumors from a single kidney is definitely a problem which can be solved by modern techniques of urological surgery. The different operation techniques in 5 of the patients operated on in the Urologische Universitätsklinik Giessen are presented and discussed. In the individual case, besides extracorporeal tumor surgery, the excision of the tumor especially using in situ perfusion with the aid of the floating catheter can facilitate the surgical intervention considerably, and in particular reduce the danger of a postoperative renal failure.