Thinking about cancer or dealing with cancer risk can be scary or overwhelming, but we believe that receiving information and resources is comforting, empowering, and lifesaving.
Genomic tests are performed on small samples of a tumor and look at the expression of many different genes. In breast cancer patients genomic tests can be used either to predict whether or not a patient needs chemotherapy and/or give a sense of the risk for recurrence. This type of tumor testing for gene activity or expression is different than genetic testing for inherited cancer risk.
Tumor tests currently in use for breast cancer give recurrance scores that can help guide treatment decisions in people with estrogen-receptor positive (ER+) breast cancer. FORCE XRAYS has reviewed resent research on two of these tests: Oncotype Dx and MammaPrint.