PATIENT CHARACTERISTICS: Age: 65 and under Menopausal status: Not specified Performance status: Karnofsky 80-100% Life expectancy: Not specified Hematopoietic: Not specified Hepatic: Bilirubin no greater than 2.0 mg/dL SGOT and SGPT no greater than 2.5 times normal No history of severe hepatic dysfunction Renal: Creatinine no greater than 2.0 mg/dL OR Creatinine clearance at least 60 mL/min Cardiovascular: Ejection fraction at least 50% No major heart disease No angina pectoris No major ventricular dysrhythmias Hypertension or congestive heart failure that is controlled with medications allowed Pulmonary: DLCO at least 60% of normal No symptomatic obstructive or restrictive disease Other: HIV negative No uncompensated major thyroid or adrenal dysfunction No insulin-dependent diabetes mellitus No active infections No significant skin breakdown from tumor or other disease Must have been seen and evaluated by a dentist for teeth cleaning and potential sources of infection No other prior malignancy except nonmelanoma skin cancer Not pregnant or nursing