Renal carcinoma with solitary lung secondary is best treated by
Surgery is the best option because 1) cytoreductive surgery will help in increase the action of immunotherapy 2) metstatectomy ( surgery to remove metstatectomy ) with curative intent has good prognosis in pulmonary Mets Ref : Campbell and Walsh urology 11th edition . chapter 63. pg no 1502
Radiotherapy
Surgery
Chemotherapy
Immunotherapy
Urology