Long-Term Effects of Iodine I Tositumomab and Autologous Bone Marrow or Stem Cell Transplantation in Patients With Relapsed or Refractory Non-Hodgkin's Lymphoma

OBJECTIVES: * Determine the progression-free survival and overall survival of patients with relapsed or refractory B-cell non-Hodgkin's lymphoma previously treated with iodine I\^131 tositumomab followed by autologous bone marrow or stem cell transplantation on FHCRC protocols 296, 521, 792, or 915. * Determine the long-term toxic effects of this regimen in these patients. * Determine the quality of life of patients treated with this regimen. OUTLINE: This is a long-term, follow-up study. Patients undergo testing for human anti-mouse antibody at 1, 3 and 12 months. Patients undergo physical examinations, blood tests, and immune system assessments every 3 months for 1 year and then annually thereafter. Thyroid, pulmonary, and cardiac function are assessed at 1 year and then annually as needed. Patients also undergo CT scans and bone marrow biopsy (if clinically indicated) annually for up to 10 years. Quality of life is assessed annually. PROJECTED ACCRUAL: A total of 47 patients will be accrued for this study.