- Lymphoma that is amenable to safe pre-treatment and post-treatment biopsy. The safety of the procedures will be determined by the treating physician and the surgeon in consultation with the PI, and in accordance with standard clinical practice. Acceptable sites of disease include, for example: (1) palpable tumor mass that is accessible under direct visualization or sonogram, (2) non-palpable tumor tissue that is accessible for biopsy under CT or sonogram guidance, (3) bone marrow.