PATIENT CHARACTERISTICS: Age: Over 18 Sex: Not specified Menopausal status: Not specified Performance status: Karnofsky 90-100% Life expectancy: More than 3 months Hematopoietic: Absolute neutrophil count greater than 1,500/mm3 Platelet count greater than 100,000/mm3 Hemoglobin greater than 9 g/dL Hepatic: Bilirubin less than 1.5 times upper limit of normal (unless due to benign congenital hyperbilirubinemia) PT and aPTT normal Liver biopsy normal if serologic evidence of active hepatitis B or C Renal: Creatinine no greater than 1.2 mg/dL Cardiovascular: No active heart disease LVEF at least 50% and no abnormal wall motion by MUGA scan Pulmonary: DLCO normal Other: Nutritional status adequate (more than 1,000 calories/day orally) HIV negative No other active serious medical or psychiatric disease No other prior malignancy except basal cell skin cancer or carcinoma in situ of the cervix uteri Not pregnant Negative pregnancy test Fertile patients must use effective barrier contraception during and for up to 2 years after study