Table 1.
Descriptive statistics for histopathological diagnoses among all B3 lesions diagnosed ad US-CNB. Final histologic results for each sub-category and associated positive predictive value (PPV) for breast malignancy.
| US-CNB | N | % | FINAL DIAGNOSIS | PPV | |
|---|---|---|---|---|---|
| Non Malignant | Malignant | ||||
| AIDEP | 26 | 20.1 | 20 | 6 | 23%, 6/26 |
| LN | 6 | 4.6 | 5 | 1 | 16%, 1/6 |
| RS/CSL | 2 | 1.6 | 1 | 1 | 50%, 1/2 |
| PL | 90 | 69.8 | 87 | 3 | 3%, 3/90 |
| FE | 5 | 3.9 | 5 | 0 | 0% |
| Total | 129 | 100 | 118 | 11 | 8%, 11/129 |
n number, PPV: positive predictive value, AIDEP: atypical intraductal epithelial proliferation, LN: lobular neoplasia, RS/CSL: radial scar/complex sclerosing lesions, PL: papillary lesions, FE: fibro-epithelial lesions with cellular stroma.