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Nipple piercing gains popularity and social acceptance within the last years, especially among young people. The medical literature reports an increase of complications in the post-piercing period. We report a case of a young woman, who presented with a light enlargment of the right breast and tenderness in the retroareolar region following nipple piercing 5 months ago. On ultrasound, a poorly marginated hypoechoic lesion was seen which was suspicious of an inflammation. After 1 week of antibiotic therapy, the mass had enlarged. As carcinoma could not be excluded, open biopsy was performed. Histology showed signs of chronic mastitis. To date, only a few reports of breast abscess after nipple piercing have been published. With the increasing prevalence of body piercing, it is important to document and report infections which may be discovered many months following piercing. Carcinoma can mimick breast abscess and should be included in the differential diagnosis.

Our study addresses at the benefit of surveillance of probably benign lesions, detected outside mammographic screening, during a 3-year period. 28,588 women (mean age 57 ± 12 years) were examined. Two independent radiologists read the mammogram as well as the supplemented ultrasound (in case of breast density ACR type 3 and 4). In the case of discordance a third expert considered whether further examination was indicated or not. 3,266 diagnostic procedures ended with BI-RADS 3 result and 2,512 (76.9 %) women underwent a follow-up examination. 295 (11.7 %) of them received assessment examination (imaging and/or biopsy) and 37 (12.5 %) (none of them palpable) ended with BI-RADS 6. This equals a tumor detection rate of 14.7/1,000. The ratio in situ:invasive was 7:10 (1:1.43) and the mean size was 11.1 ± 4.51 mm. In the total cohort, 536 carcinomas ended with BI-RADS 6 of them 17 % were in situ and 83 % were invasive breast cancers (ratio in situ:invasive 1:4.99), mean size was 13.8 ± 6.3 mm. The cancer detection ratio in these cases was 18.7/1,000. The amount of detected tumors at follow-up of women with preceding BI-RADS 3 equates the associated potential of malignancy.