Lymph nodes are small organs that are part of the lymphatic system. They act in the body’s defense and produce antibodies.
When enlarged, they are popularly called “swollen glands.” Among laypeople, the most well-known locations are the lymph nodes in the neck, armpits, and groin. Hodgkin’s lymphoma is a type of cancer that originates in the cells of the lymphatic system.
However, there are also lymph nodes in various other locations, such as above the collarbones, in the mediastinum, abdomen, and pelvis.
