PATIENT CHARACTERISTICS: Age: 18 to 65 Performance status: Karnofsky 70-100% Life expectancy: Not specified Hematopoietic: Absolute neutrophil count at least 1,500/mm3 Platelet count at least 100,000/mm3 No uncontrolled bleeding Hepatic: Bilirubin no greater than 2.0 mg/dL SGOT and/or SGPT less than 3 times normal Renal: Creatinine no greater than 1.5 mg/dL Cardiovascular: Normal EKG Ejection fraction at least 45% Patients with abnormal EKG, history of myocardial infarction, unstable angina, congestive heart failure, or prior cumulative anthracycline dose of at least 250 mg/m2, must have a left ventricular ejection fraction performed No congestive heart failure or uncontrolled hypertension Pulmonary: DLCO greater than 60% No pneumonia No asthma, even if controlled Neurologic: No dementia or altered mental status Other: No active infection (e.g., peritonitis, wound abscess) HIV negative No prior cyclophosphamide induced hemorrhagic cystitis No serious concurrent systemic disease (e.g., diabetes mellitus, hypothyroidism) No other active malignancies Not pregnant Negative pregnancy test Fertile patients must use effective contraception