OBJECTIVES: I. Determine the maximum tolerated dose and dose limiting toxicity of yttrium Y 90 humanized anti-CD22 LL2 (Y90 MOAB hLL2) in combination with salvage chemotherapy and autologous peripheral blood stem cell rescue in patients with recurrent or refractory B-cell malignancies. II. Study the effect of chemotherapy on the uptake of Y90 MOAB hLL2 into tumor sites and normal organs by pretherapy imaging using indium In 111 humanized LL2 and intratherapy imaging. III. Determine the extent and duration of tumor response in patients receiving this regimen.