Fig. 1.

Selected images of a 54-year-old asymptomatic woman with dense breasts and no previous history of breast cancer. a Craniocaudal digital mammograms taken the same day as the AWBU study. b Mediolateral oblique digital mammograms taken the same day as the AWBU study. c Transverse AWBU image of the right breast at 11:30, 6 cm from the nipple; white arrow shows a 7 mm, grade I, stage 1, invasive ductal carcinoma. d AWBU image of the left breast at 12:00, 3 cm from the nipple; two white arrows show 10 mm, grade I, stage 1, invasive carcinoma with lobular carcinoma in situ