What can cause nodules on lymph nodes besides cancer?
Lymph nodes (erroneously called lymph glands) are a part of the lymphatic system, a component of the body’s immune system. Swollen lymph nodes may signal an infection. There are several groups of lymph nodes, which are small, bean-shaped, soft nodules of tissue. The ones most frequently enlarged or swollen are found in the neck, under the chin, in the armpits, and in the groin. THE LYMPHATIC SYSTEM: consist of nodes and ducts spread throughout the body. They bring the lymph (the tissue fluid surrounding the cells, which contains white blood cells (lymphocytes), fluid from the intestines (chyle), and some red blood cells) back into the circulation through the veins. Lymph contains a concentration of infectious and other foreign substances (antigens). LYMPH NODES are small cluster of cells, surrounded by a capsule. Ducts go in and out of them. The cells in lymph nodes are lymphocytes, which produce antibodies (protein particles that bind foreign substances including infectious particles)
