Sentinel Lymph Node Biopsy

Overview

This is a test to look for cancer cells in one or more of your lymph nodes. The lymph nodes are small bean-shaped structures. They're part of your lymphatic system. Cancer can spread through this system to other parts of your body.

Locating the lymph nodes

To help your surgeon find the right lymph nodes to remove, you may be injected with a radioactive fluid. This is done hours before your biopsy. You may have an injection of dye, which is done just before the lymph nodes are removed. Your surgeon will let you know what injections are right for you.

Biopsy

During the biopsy, you will most likely be asleep. An incision is made in your skin. Lymph nodes that have absorbed the radioactive fluid or dye are identified and removed. They are taken to a lab and examined for cancer cells. Your surgeon will follow up with you when the results are ready.

Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.