A study in JAMA Oncology provided new information about the prognosis for women with stage 0 breast cancer, or ductal carcinoma in situ. It also raises new questions about the best approach to treat this condition. The study examined outcomes for more than 108,000 women diagnosed over a 20-year period.
WHAT IS STAGE 0 BREAST CANCER?
Ductal carcinoma in situ, less formally known as stage 0 breast cancer, is a diagnosis that refers to cells that are considered abnormal or precancerous and are confined to the milk ducts in the breast. Up to 60,000 women in the United States receive this diagnosis each year, according to the New York Times. As mammography technology has advanced, allowing radiologists to detect increasingly smaller areas of abnormal cells, there has been a significant increase in the number of women with this diagnosis.
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