Renal malignancies: outcome of patients in stage 4 with or without embolization procedure.

During four and one-half years a total of 44 patients with renal cell carcinoma in Stage 4 were admitted to our hospital. Of these, 18 patients were treated with an embolization procedure, 8 patients had nephrectomy without embolization, and another 18 patients received no active treatment. Except for the treatment there were no differences between these groups.