Interleukin-2 in Treating Patients With Stage III or Stage IV Kidney Cancer That Has Been Removed With Surgery

DISEASE CHARACTERISTICS: Histologically proven stage III or IV renal cancer that has been completely resected and is at high risk for recurrence, including at least one of the following: Tumor invades adrenal gland or perinephric tissues but not beyond Gerota's fascia (T3a) OR Tumor extending into renal vein, vena cava (T3b) OR Tumor grossly extends into vena cava above diaphragm (T3c) OR Tumor invades beyond Gerota's fascia (T4) OR Any lymph node involvement totally resected (N1-3) OR Completely resected metastases of all sites No brain metastases PATIENT CHARACTERISTICS: Age: Not specified Performance status: ECOG 0-2 Life expectancy: Not specified Hematopoietic: WBC at least 3,500/mm3 Platelet count at least 100,000/mm3 Hemoglobin at least 9 g/dL Hepatic: Bilirubin less than 3 times upper limit of normal (ULN) AST or ALT less than 3 times ULN Renal: Creatinine no greater than 1.9 mg/dL Cardiovascular: No prior myocardial infarction within 6 months No LVEF less than 35% No primary cardiac arrhythmias beyond occasional PVCs No angina No uncontrolled congestive heart failure No cerebrovascular accident Pulmonary: No dyspnea at rest or requirement for supplemental oxygen Oxygen saturation greater than 90% for patients with symptomatic lung disease Other: Not pregnant or nursing Negative pregnancy test Fetile patients must use effective contraception Temperatures greater than 100.5 degrees F must have occult infection excluded No psychiatric disorders PRIOR CONCURRENT THERAPY: Biologic therapy: Not specified Chemotherapy: No concurrent cyclosporine or methotrexate Endocrine therapy: At least 3 weeks since prior corticosteroids No concurrent corticosteroids Radiotherapy: Not specified Surgery: At least 2 weeks since prior surgery Other: At least 3 weeks since prior immunosuppressive medications No concurrent immunosuppressive medications