Dr. Bray Links

Tuesday, October 18, 2016

Breast-Cancer Tumor Size, Overdiagnosis, and Mammography Screening Effectiveness — NEJM

Although the rate of detection of large tumors fell after the introduction of screening mammography, the more favorable size distribution was primarily the result of the additional detection of small tumors. Women were more likely to have breast cancer that was overdiagnosed than to have earlier detection of a tumor that was destined to become large. The reduction in breast cancer mortality after the implementation of screening mammography was predominantly the result of improved systemic therapy.


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