Table 2.
Pathology of synchronous lesions according to imaging factors of 54 index lesions
| Characteristic | Histopathologic outcome |
||
|---|---|---|---|
| Benign a)(n=52) | Malignant b)(n=18) | P-value | |
| Size (mm), mean±SD (range) | 20±9.8 (4-40) | 17±9.5 (5-41) | 0.23 |
| Mammography presentation c) | 0.46 | ||
| Negative | 8 | 1 | |
| Mass only | 24 | 8 | |
| Mass with microcalcifications | 11 | 5 | |
| Calcifications only | 1 | 2 | |
| Not available | 7 | 1 | |
| Ultrasonogrphic findings | |||
| Shape c) | 0.93 | ||
| Round | 6 | 3 | |
| Oval | 13 | 4 | |
| Irregular | 31 | 10 | |
| Orientation | 0.84 | ||
| Parallel | 14 | 5 | |
| Non-parallel | 36 | 12 | |
| Margin | 0.17 | ||
| Well-circumscribed | 4 | 4 | |
| Indistinct | 4 | 3 | |
| Angular | 7 | 0 | |
| Microlobulated | 20 | 5 | |
| Spiculated | 15 | 5 | |
| Boundary | 0.42 | ||
| Abrupt | 31 | 13 | |
| Echogenic halo | 19 | 4 | |
| Echogenicity | 0.44 | ||
| Anechoic | 0 | 0 | |
| Hyperechoic | 2 | 1 | |
| Complex | 0 | 0 | |
| Hypoechoic | 36 | 12 | |
| Isoechoic | 12 | 4 | |
| Acoustic attenuation | 0.87 | ||
| None | 38 | 12 | |
| Enhancement | 8 | 3 | |
| Shadowing | 4 | 2 | |
| Calcification | 0.39 | ||
| None | 20 | 6 | |
| With calcification | 30 | 11 | |
| Final assessment | 0.63 | ||
| Category 4a | 6 | 2 | |
| Category 4b | 10 | 2 | |
| Category 4c | 15 | 3 | |
| Category 5 | 19 | 10 | |
a)
Additional synchronous benign breast lesion.
b)
Additional synchronous malignant breast lesion.
c)
Imaging features of 3 index breast lesions were not included because they were previously excised (2 in additional benign and one in additional malignant).