—A foreign substance that leads to an immune response, including the production of antibodies by B cells.
—A condition in which an individual's immune system reacts to their own tissues, viewing self components as if they were foreign antigens.
—A procedure in which cellular material is removed from the pelvis or breast-bone and examined under a microscope to look for the presence of abnormal blood cells characteristic of specific forms of leukemia and lymphoma.
—Cancerous growths of lymphoid tissue that progress slowly to more aggressive forms of cancer.
—Sites within the body that produce cells of the immune system, including lymph nodes, bone marrow, and the thymus.
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Author Info: Warren Maltzman Ph.D., The Gale Group Inc., Gale, Detroit, Gale Encyclopedia of Cancer, 2002 |