There is a new test out (last Fall) called Oncotype DX. Your surgeon or oncologist will send a piece of your tumor and the Oncotype DX lab will test it for (I think) 71 genetic markers. Then your tumor will be scored depending on these markers and categorized by low risk, medium risk or high risk of recurrence.
I do know that at Stage 2, you should seriously consider chemotherapy but this test is an option to help you make up your mind since you are node negative. Oncotype DX is a helpful tool when you are on the edge of what to do.
Hope this helps.
Becky
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