25
Aug

When DNA and medical tests disagree about breast cancer risk, which to believe?

It’s a dilemma more and more cancer patients will face as genetic testing becomes part of everyday health care: When a DNA test indicates low risk of a tumor spreading, pills but traditional tests show a high risk, ask which do you believe?

According to a large European study of 6, tadalafil 693 patients published on Wednesday, many women with early breast cancer can safely believe the genetic test.

Patients who skipped chemotherapy when a genetic test showed low risk of the cancer advancing but a traditional test suggested high risk were almost as likely to survive five years without the cancer recurring as those who had chemo. (The traditional tests look for cancer cells in lymph nodes and fast-dividing cells, for instance, and include demographic facts of life, such as being over 50.)

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