PATIENT CHARACTERISTICS: Age: 18 and over Performance status: Karnofsky 70-100% Life expectancy: At least 6 months Hematopoietic: WBC greater than 3,500/mm3 Platelet count greater than 100,000/mm3 Hepatic: Bilirubin less than 2.0 mg/dL SGOT less than 3 times upper limit of normal PT less than 14 seconds Renal: Creatinine less than 2.0 mg/dL OR Creatinine clearance greater than 60 mL/min Cardiovascular: No myocardial infarction within the prior 6 months No active angina pectoris, New York Heart Association class III or IV heart disease, or severe debilitating valvular disease Ejection fraction greater than 45%, with no evidence of ventricular aneurysm or other abnormal wall motion OR SESTAMIBI stress test must show fixed defect alone if ejection fraction less than 45%, or a worrisome but nonexclusive cardiovascular history, or an abnormal ECG Pulmonary: No severe pulmonary disease Other: Fertile patients must use effective contraception No history of an active secondary malignancy with the past 5 years except nonmelanoma skin cancer No infection requiring intravenous antibiotic treatment No other severe medical problem that would increase the risk for toxicity