Swollen lymph nodes under the jaw or on either side of the neck may hurt when you turn your head in a certain way or you’re chewing food. They can often be felt simply by running your hand over ...

Some lymph nodes, such as those in the neck, armpit, and groin, are near the skin’s surface, so a person may see or feel them when they swell. Summary Lymph nodes are a part of the lymphatic system.

Your lymph nodes, along with your spleen, tonsils, and adenoids, help you fight off illness and infections. Learn more about your lymph nodes’ part in this first line of defense.

Swollen lymph nodes, or swollen glands, in the neck may indicate an infection. They can also occur due to a medical condition, such as an immune disorder or, less commonly, cancer. Treatment can ...

A lymph node biopsy can help determine if you have an infection, an immune disorder, or cancer. Learn more about the purpose, procedure, and risks.

The sizes of the largest involved lymph nodes of the 81 node-positive cases are shown in Figure 1d.Interestingly, the largest positive lymph nodes in two cases were only 2 and 3 mm in diameter.

At the surface, the immune response to a flu virus is simple. Some cells recognize the pathogen and send a signal to the ...

Lymph nodes help clear infecting pathogens and prevent their dissemination. In the case of lymph-borne virus, this involves a particular subpopulation of macrophages that is shown to capture the ...