In a pre vi ous study, it was noted that in some cases when com pres sive strains greater than about 5% were ap plied to tu mors re moved from the breast, there was an abrupt and ir re vers ible change in the tis sue stiff ness. The data from that study were fur ther an a lyzed and in fil trat ing ductal car ci no mas with and with out lob u lar fea tures were se lected for ad di tional test in...