Prognosis of Japanese metastatic renal cell carcinoma patients in the cytokine era: a cooperative group report of 1463 patients.

BACKGROUND Incidence rate of renal cell carcinoma (RCC) differs among countries. The rates of Asian countries are lower than those of countries in North America or Europe but are exceptionally high in Japanese males. Approximately 30% of patients with RCC have metastasis at initial diagnosis, and another 30% have metastasis after nephrectomy. Clinical… (More)