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throughout the body) and other lymphoid tissues (such as the spleen, bone marrow, and. some other organs, including the skin). Lymphomas can start in any of these places. When a non-Hodgkin lymphoma starts only in the skin (not in other organs or tissues) it. is called a skin lymphoma (or cutaneous lymphoma). A lymphoma that starts in lymph. nodes or another part of the body and then spreads to the skin is not a skin lymphoma. (because it didnât start there).
The other main function is that of defense in the immune system. Lymph is very similar to blood plasma: it contains lymphocytes and other white blood cells. It also contains waste products and debris of cells together with bacteria and protein.Associated organs composed of lymphoid tissue are the sites of lymphocyte production. Lymphocytes are concentrated in the lymph nodes.The spleen and the thymus are also lymphoid organs of the immune system. The tonsils are lymphoid organs that are also associated with the digestive system. Lymphoid tissues contain lymphocytes, and also contain other types of cells for support.ymphocytes are concentrated in the lymph nodes. The spleen and the thymus are also lymphoid organs of the immune system. The tonsils are lymphoid organs that are also associated with the digestive system. Lymphoid tissues contain lymphocytes, and also contain other types of cells for support.