Fear of cancer's return may be driving women with an early diagnosis of breast cancer to have one or both breasts removed, though research shows milder treatment is just as effective. Jose Luis Pelaez/Getty Images hide caption

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Mastectomy No Better Than Lumpectomy For Early Breast Cancer

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Ductal carcinoma in situ sometimes can turn into invasive breast cancer, but there's currently no test that can tell when it's dangerous and when it's not. Steve Gschmeissner/Science Photo Library/Corbis hide caption

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Surgeon Seeks To Help Women Navigate Breast Cancer Treatment

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TV host Samantha Harris says she will have a double mastectomy after being diagnosed with breast cancer. But the surgery doesn't eliminate cancer risk. Jordan Strauss/Invision/AP hide caption

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In sharing her decision to have a double mastectomy, Angelina Jolie has given voice to a dilemma more women are facing. Carlo Allegri/AP hide caption

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