REAST AUGMENTATION IS THE third most common type of plastic surgery performed for cosmetic reasons in the United States, with 268 888 procedures in 2002. 1 In 2 studies conducted in the late 1980s, between 3.3 and 8.1 per 1000 women reported ever having breast implants. 2,3 Although breast implants have not been found to be associated with an increased risk of breast cancer, 4,5 implants may interfere with routine mammography evaluation; therefore, women with breast augmentation may be more likely to be diagnosed with advanced disease. [6][7][8][9][10][11][12][13][14][15][16] Previous studies of breast cancer following breast augmentation have typically had small study samples and yield conflicting results as to whether breast implants delay cancer diagnosis. 4,7,8,[16][17][18][19][20][21][22][23][24][25] In addition, these studies include cancers diagnosed in the early 1980s when routine screening mammography was uncommon 26 and radiologists did not use implantation displacement views, a technique that improves visualization of breast tissue in women with implants. 12 Two recent larger studies of breast cancer following augmentation mammoplasty suggest breast cancer diagnosis may be delayed in women with augmentation. 4,7 Brinton et al 4 found women with breast implants (N = 78) tended to have later-stage disease compared with women without augmenta-Author Affiliations and Financial Disclosure are listed at the end of this article.