On it's way lymph passes through masses of tissue called lymph nodes
Lymph nodes
Lymph nodes are most dense in the inguinal, axillary and cervical regions of the body.
"The Lymph Nodes, or glands, are small tissue masses in which some protective cells are stored. If pathogens invade your body, many of them are carried to the lymph nodes to be destroyed. This is why your lymph nodes often feel swollen when you have a cold or the flu." (From An Invitation to Health, 2009-2010 Edition, by Dianne Hales)
tiny vessels
Lymph nodes are made up primarily of connective tissue. In the case of lymph nodes, this connective tissue is dense, and irregular in organization.
lymph-nodes
Lymph nodes are composed of masses of lymphocytes and other cells which serve the function in humans of fighting off foreign bodies including bacteria and viruses. Lymph nodes are a central part of the human immune system. Lymphatic ducts carry lymph fluid into and out of lymph nodes. This is one of the ways that immune cells travel to all parts of the body. Cancers of the lymph nodes are called lymphomas of which the most well known is Hodgkins Disease.
Lymph nodes
Lymph nodes
Actually, most healthy lymph nodes contain fatty hilus. Sometimes lymph nodes can have fatty hilus and it could turn out to be malignant.
spleen, tonsils, lymph nodes, heart, thymus,