Screening for breast cancer.

Mammography is of real assistance to the surgeon in evaluating breast problems not associated with a breast mass. Use of mammography in the detection of early breast cancer in breast demonstration projects has brought forth the time honored value judgement of benefit vs risk. This report introduces an additional aspect in the consideration of benefit vs risk, the interval cancer. From the demonstration project at KUMC, 326 biopsies were performed and 65 proved to be cancer. However, 24 additional women developed cancer before their next recommended screening date. This reduces the accuracy of mammography and physical examination by trained nurses in screening for breast cancer to 73%.