PATIENT CHARACTERISTICS: Age: 18 and over Performance status: WHO 0-2 Life expectancy: At least 3 months Hematopoietic: See Disease Characteristics Absolute neutrophil count at least 1,500/mm3 Lymphocyte count no greater than 5,000/mm3 (for small lymphocytic lymphoma) Platelet count at least 150,000/mm3 Hepatic: Bilirubin no greater than 2.0 mg/dL Renal: Creatinine no greater than 2.0 mg/dL Other: Not pregnant or nursing Negative pregnancy test Fertile patients must use effective contraception during and for 6 months after study HIV negative No serious nonmalignant disease or infection that would preclude study No antimurine antibody reactivity