Lymph nodes, spleen, tonsils, adenoids and the thymus
Lymph is a clear fluid that is similar to (blood) plasma, but contains less protein. The lymphatic tissues throughout the body operate in conjunction with each other to perform the functions of the lymphatic system. The lymphatic system is part of the body's immune system. Lymphatic tissue is rich in lymphocytes (and accessory cells such as macrophages and reticular cells). The lymphatic tissue includes the lymph nodes, spleen, tonsils, adenoids and the thymus (an organ in the chest that is particularly large during infancy). In medicine, a tissue is a broad term that is applied to any group of cells that perform specific functions. A tissue in medicine need not form a layer. 1 The lymphatic system is part of the immune system. 2  It consists of a network of vessels that carry a fluid called lymph, similar to the way that the network of blood vessels carry blood throughout the body. 3  Lymph contains white blood cells called lymphocytes that are also present in blood and tissues. The lymphatic system is a network of tissues and organs that help rid the body of toxins, waste and other unwanted materials. The primary function of the lymphatic system is to transport lymph, a fluid containing infection-fighting white blood cells, throughout the body. About lymph nodes and lymphoid tissue. To understand Castleman disease, it helps to know about the body’s lymph system. Lymphoid tissue, also known as lymphatic tissue, is the main part of the immune system. It is formed by different types of cells that work together to help the body fight infections. The main cells in lymphoid tissue are lymphocytes, a type of white blood cell. There are 2 main types of lymphocytes: B cells and T cells. However, the structure of lymphatic tissues vary according to the particular type of lymphatic tissue or organ they form a part of - (a), (b) or (c) above, and possibly also it's location in the body-especially in the case of (c) Lymph (Fluid).
http://www.ivyroses.com/HumanBody/Tissue/Tissue_Lymphatic-Tissue.php http://www.medicinenet.com/script/main/art.asp?articlekey=10347 http://www.emedicinehealth.com/lymphoma/article_em.htm http://www.livescience.com/26983-lymphatic-system.html http://www.cancer.org/cancer/castlemandisease/detailedguide/castleman-disease-what-is-castleman-disease http://www.ivyroses.com/HumanBody/Tissue/Tissue_Lymphatic-Tissue.php
types of lymphatic tissue