From another angle, it might be obvious. Each additional view, however, adds cost, increases the amount of radiation used, and adds less new information. T he main goal of screening mammography is detecting early breast cancer. Early detection permits treatment of lesions, in many cases, before the cancer has had a chance to spread beyond the breast. Treatment will require removing less breast tissue.
Cancer develops through a series of sequential events.
The earlier the changes are detected, the easier it is to treat the cancer, and the better the chance of complete cure. In some cases, screening will detect pre-cancerous states. Two reasons for having a mammogram are any Change From a Prior Mammogram and reassurance. 17 T here are several reasons why a growing cancer may be missed on a mammogram. 18 B ecause the quality of mammography in different sites varies widely, a series of standards has been introduced to help to improve quality.