Treatment of renal cell carcinoma by extracorporeal partial nephrectomy and autotransplantation using splenic vascular anastomosis. A patient with large left lower pole renal cell carcinoma in a solitary kidney is presented. The patient was treated by partial nephrectomy and autotransplantation using splenic arterial and venous anastomoses. The potential for reducing operative morbidity compared with autotransplantation to the iliac fossa is discussed. 