[Kidney tumor embolization. Progress, experiences and complications].

Indications for preoperative and palliative embolization of renal tumors have been restricted due to the failures caused by insufficient tumor blockage. Personal experiences using a variety of materials (balloon n = 18, gelfoam n = 10, ethibloc1 /glucose n = 23) and their effectiveness are presented. special emphasis is placed on the influence of parasitic collaterals and the complication rate on the various procedures. Clinical results corroborate those obtained from our own animal experiments: only a capillary embolization that is based on the tumor volume exhausts the current possibilities of therapeutic vascular occlusion of tumors.