What Are Lymph Node Biopsies?

A lymph node biopsy is a procedure to remove a lymph node for examination under a microscope. Lymph nodes are small, bean-shaped glands that are part of the body's immune system. They are located throughout the body, but the most common sites for a lymph node biopsy are the neck, armpit, and groin.

Lymph node biopsies are done to:

* Diagnose certain medical conditions, such as cancer, infection, or an autoimmune disorder

* Determine the stage of a cancer

* Monitor the response to treatment

* Provide a sample of tissue for further testing

There are different types of lymph node biopsies, depending on the reason for the procedure. The most common type of lymph node biopsy is a fine-needle aspiration (FNA) biopsy. During an FNA biopsy, a thin needle is inserted into the lymph node and a small amount of tissue is suctioned out. The tissue is then smeared onto a microscope slide and examined for abnormalities.

Another type of lymph node biopsy is a core needle biopsy. During a core needle biopsy, a larger needle is inserted into the lymph node and a small piece of tissue is removed. The tissue is then sent to a laboratory for analysis.

In some cases, a lymph node biopsy may be done surgically. This is usually done when the lymph node is enlarged or there is a need to remove the entire lymph node.

Lymph node biopsies are generally considered to be safe procedures. However, there is a risk of infection, bleeding, and bruising at the biopsy site. In some cases, a lymph node biopsy may cause damage to the lymphatic system, which can lead to swelling in the arm or leg.