Lymph nodes are small, round organs of the lymphatic system that support proper functioning of the immune system. They help the body to fight off infection by filtering foreign particles out of lymph, ...

The lymphatic system has long been considered mysterious. But the lymphatic system – and the lymph nodes within it – plays fascinating and important roles in health and disease, from fighting off ...

Researchers have developed a compact camera that captures ultraviolet, near-infrared, and visible images using a single chip. Inspired by the multiwavelength vision capability of the mantis shrimp, ...

Cancer that starts in the lymph nodes is lymphoma. Cancer may also spread from other areas of the body to various lymph nodes, including the neck. Swollen lymph nodes are usually due to a cause other ...

The popliteal lymph nodes lie in the tissues behind a person’s knee. Infections and autoimmune conditions can cause them to swell. It is rare for cancer to affect the popliteal lymph nodes. According ...

The lymph nodes in your neck and other parts of your body can be swollen for years, but this does not always mean it is a sign of cancer. You might have a common cold, throat infection, or another ...

Cancer treatment routinely involves taking out lymph nodes near the tumor in case they contain metastatic cancer cells. But new findings from a clinical trial by researchers at UC San Francisco and ...

Removing lymph nodes during cancer surgery has saved countless lives in many tumour types. Yet recent research is challenging parts of this long-standing practice. Imagine your body’s immune defences ...

A swollen lymph node can be a bit like your body’s version of a red flag: When one of these bean-shaped clusters of immune cells in your neck, armpit, or groin puffs up, it’s typically an indication ...

Allergies occur when your immune system overreacts to allergens like pet dander, pollen, mold, certain foods, or medications. Allergy symptoms may include a runny nose, congestion, coughing, wheezing, ...