PATIENT CHARACTERISTICS: Age: 15 to 60 Performance status: Karnofsky 80-100% Hematopoietic: Granulocyte count at least 1,500/mm3 Platelet count at least 100,000/mm3 Hepatic: Bilirubin less than 2.0 mg/dL SGOT/SGPT less than 2 times normal Albumin greater than 3.0 mg/dL Renal: Creatinine less than 1.8 mg/dL Cardiovascular: LVEF at least 50% No other serious cardiac disease that would preclude transplantation Pulmonary: DLCO, FEV1, and FVC at least 50% predicted pO2 at least 70 mm Hg on room air Other: HIV negative No other concurrent serious psychiatric, neurologic, neoplastic, immunologic, or other medical problem that would preclude transplantation Not pregnant