Risk of developing breast cancer determined by mammography.

1) By breast parenchymal patterns one can isolate women at significantly high and low risk for developing breast carcinoma from the general population. 2) Basically the risk classification does not change with aging. 3) Radiographic screening studies should be concentrated in the high risk groups. 4) The highest risk group, DY, should be considered for aggressive surgical ablation of the tissue capable of generating a breast cancer.