OBJECTIVES: I. Determine the maximum tolerated dose and dose limiting toxicity of yttrium Y 90-labeled humanized anti-CD22 monoclonal antibody LL2(90Y-hLL2 IgG) in patients with B-cell malignancies. II. Determine the pharmacokinetics and biodistribution of indium In 111 humanized LL2 (111In-hLL2 IgG) in these patients. III. Evaluate the immunogenicity of repeated injections of 90Y-hLL2 IgG in these patients. IV. Determine whether 90Y-hLL2 IgG versus indium In 131 humanized LL2 IgG has a therapeutic advantage based on organ and tumor dosimetry obtained with 111In-hLL2 IgG.