[Therapy planning and prognosis evaluation in malignant kidney neoplasms. A lymphographic study of 50 malignant kidney neoplasms].
Of fifty patients with malignant renal tumors who underwent lymphographic examination, 15 (30%) had lymph node metastases. Two years from the beginning of therapy, 13 of these patients were deceased in spite of surgical and radiological treatment. The enhancement of the five-year survival rate following radiation therapy for malignant renal tumors is quoted between 7 and 26%. This success is probably due to the destruction of micrometastases, not being representable lymphographically. Radiation therapy of malignant renal tumors, therefore, can only be effective including the para-aortic lymphatic chains.