Lymph nodes are small bean shaped glands. We have them throughout our bodies including the head and neck area. They are part of the lymphatic system that filters body fluid and fights infection. Lymph ...

They’re part of the lymphatic system, which helps clear bacteria ... and can become swollen if you have an infection in your ...

But Zevallos, a surgical oncologist, wondered if surgical lymphatic fluid could be more informative for head and neck cancer liquid biopsy. "After surgery, patients typically have a surgical drain ...