There are many types of lymphoma.
Doctors distinguish between them based on the type of lymphocytes in which the cancer has developed, such as B cells, T cells, or NK cells. Most lymphoma develops in the body’s B cells, which are produced in the bone marrow.
We further divide the lymphoma category into two broad groups: non-Hodgkin lymphoma and Hodgkin lymphoma (Hodgkin’s disease). Another 5 percent or so of lymphomas are the relatively rare T cell lymphoma.