 During therapy, patients have tests performed on their bone marrow, tumor tissue, blood or other fluids to look at different genes and proteins that may be involved in the development of their lymphoma or the reaction of the immune system. A tissue biopsy is done before treatment begins and a day after treatment starts. Disease progress is followed with CT scans and blood tests. When treatment is completed, patients whose cancer has disappeared are scheduled for periodic follow-up examinations and tests. Those whose disease remains or recurs may be offered participation in another protocol if an appropriate one is available or are returned to the care of their local physician. 