COVID-19 Updates: Please know that patient safety remains our top priority. Extra steps are being taken to keep you safe.
Please call 716.631.2500 to schedule an appointment.  Click here to learn more.


tumor marker (TOO-mer MAR-ker)

A substance found in tissue, blood, or other body fluids that may be a sign of cancer or certain
benign (noncancerous) conditions. Most tumor markers are made by both normal cells and
cancer cells, but they are made in larger amounts by cancer cells. A tumor marker may help
to diagnose cancer, plan treatment, or find out how well treatment is working or if cancer has
come back. Examples of tumor markers include CA-125 (in ovarian cancer), CA 15-3 (in breast cancer), CEA (in colon cancer), and PSA (in prostate cancer).

Leave a Reply