The lymph nodes are small glands that are part of your immune system. They contain white blood cells and are responsible for ...

You might have surgery to remove lymph nodes in your tummy (abdomen). These are called the retroperitoneal lymph nodes. This operation is called a retroperitoneal lymph node dissection. This is a ...

Researchers have developed lab-generated lymph node–like organoids that, when transplanted into mice in place of lymph nodes that have been removed, drain fluid and connect to the animals’ original ...