PATIENT CHARACTERISTICS: Age: 18 and over Performance status: Karnofsky 60-100% Life expectancy: Not specified Hematopoietic: WBC greater that 3,000/mm3 Platelet count greater than 100,000/mm3 Hepatic: AST less than 1.5 times upper limit of normal Hepatitis B negative Renal: Not specified Cardiovascular: Adequate cardiac function Other: HIV negative Not pregnant or nursing Fertile patients must use effective contraception No prior malignancy within 5 years except adequately treated nonmelanomatous skin cancer or carcinoma in situ of the cervix No history of tuberculosis No grade 3 local skin toxicity reaction (ulceration) to 5 IU or greater of PPD test No active infections requiring systemic antibiotics, antiviral, or antifungal treatments No serious unstable chronic illnesses No psychological, familial, sociological, or geographical condition that would preclude study