How Do Doctors Know if Breast Cancer Has Spread to the Lymph Nodes?

Question: What are the methods used to investigate whether breast cancer has spread to the lymph nodes?

Answer: To test whether cancer has spread to lymph nodes in breast cancer, it is necessary to remove some of the lymph nodes under the armpit. Non-invasive tests such as ultrasounds, MRIs, or PET scans have not proven sufficiently accurate to give women the information they need to plan their subsequent chemotherapy or hormonal therapy.

Traditionally we've had to remove all the lymph nodes under the armpits -- about 15 to 20 lymph nodes; and over the last ten years, it's been proven that we can target the same lymph nodes that may have cancer in them, by doing what's called a 'sentinel lymph node biopsy,' and only remove an average of about three lymph nodes. Removing these fewer number of lymph nodes markedly reduces the pain, discomfort, and potential for long-term side effects for lymph node surgery, and it's been a major advance in the treatment of breast cancer.

Next: When Is A Sentinel Node Biopsy Considered, and When Is An Axillary Lymph Node Dissection Necessary?


Previous: What Are Lymph Nodes and What Do They Do?
-- This embed didnt make it to copy for story id = 3656556. -- This embed didnt make it to copy for story id = 3656556. -- This embed didnt make it to copy for story id = 3656556.
Join the Discussion
blog comments powered by Disqus
You Might Also Like...
See It, Share It
PHOTO: Kanye West accepts the Vanguard Award onstage during the 2015 MTV Video Music Awards at Microsoft Theater on August 30, 2015 in Los Angeles, California.
Christopher Polk/MTV1415/Getty Images
PHOTO: Russian President Vladimir Putin works out at Bocharov Ruchei residence in Sochi, Russia, Aug. 30, 2015.
Russian Presidential Press and Information Office/Anadolu Agency/Getty Images