Lymphoma is cancer that begins in infection-fighting cells of the immune system, called lymphocytes. These cells are in the lymph nodes, spleen, thymus, bone marrow, and other parts of the body. When you have lymphoma, lymphocytes change and grow out of control.
There are two main types of lymphoma:
Non-Hodgkin: Most people with lymphoma have this type.
Non-Hodgkin and Hodgkin lymphoma each affect a different kind of lymphocyte. Every type of lymphoma grows at a different rate...