PATIENT CHARACTERISTICS: Age: 18 and over Performance status: ECOG 0-2 Life expectancy: At least 6 months Hematopoietic: Hemoglobin at least 8.0 g/dL Lymphocyte count at least 1,000/mm3 Neutrophil count at least 1,500/mm3 Platelet count at least 100,000/mm3 Hepatic: Bilirubin no greater than 1.5 times normal Renal: Creatinine no greater than 2 mg/dL Cardiovascular: No uncontrolled hypertension No congestive heart failure No arrhythmias Other: Not pregnant or nursing Negative pregnancy test Fertile patients must use effective contraception No active autoimmune disease requiring chronic treatment No allergy to murine proteins No documented anaphylactic reaction to any drug No active infection causing fever No immunodeficiency disease No uncontrolled nonmalignant diseases No other malignancy (except nonmelanomatous skin cancer or carcinoma in situ of the cervix) unless curatively treated and free of disease for at least 5 years