Lymph node biopsy
Show Alternative Names
Biopsy - lymph nodes
Open lymph node biopsy
Fine needle aspiration biopsy
Sentinel lymph node biopsy
A lymph node biopsy is the removal of lymph node tissue for examination under a microscope. The lymph nodes are small glands that make white blood cells (lymphocytes), which fight infection. Lymph nodes may trap the germs that are causing an infection. Cancer can spread to lymph nodes.