PATIENT CHARACTERISTICS: Age: 18 and over Performance status: Karnofsky 60-100% Life expectancy: At least 3 months Hematopoietic: ANC at least 1,500 Platelets at least 100,000 Hb at least 10 g/dl (may transfuse) Hepatic: Bilirubin no greater than 2.0 mg/dl SGOT or SGPT no greater than 2 x normal Renal: Creatinine no greater than 1.5 mg/dl BUN no greater than 25 mg/dl Pulmonary: Chest x-ray normal If abnormal or if there is a history of pulmonary disease, pulmonary function studies (including DLCO) must be at least 75% of predicted Other: Neurologic function status 0-3 No AIDS No major medical or psychiatric illness that would preclude protocol therapy or follow-up No second malignancy within 5 years except: Nonmelanomatous skin cancer In situ carcinoma of the uterine cervix