Table 3.
Pathology of synchronous lesions according to location and imaging factors of 70 additional breast lesions seen on ultrasonography
| Characteristic | Histopathologic outcome |
||
|---|---|---|---|
| Benign a)(n=52) | Malignant b)(n=18) | P-value | |
| Size (mm), mean±SD (range) | 7.8±3.9 (4-21) | 8.7±3.8 (4-17) | 0.36 |
| Location related to index lesion | 0.06 | ||
| Ipsilateral | 25 | 14 | |
| Contralateral | 27 | 4 | |
| Mammography presentation | <0.01 | ||
| Negative | 42 | 7 | |
| Mass only | 1 | 1 | |
| Mass with microcalcifications | 0 | 5 | |
| Calcifications only | 2 | 4 | |
| Not available | 7 | 1 | |
| Ultrasonographic findings | 13 | 4 | |
| Shape | 0.22 | ||
| Round | 12 | 8 | |
| Oval | 23 | 6 | |
| Irregular | 17 | 4 | |
| Orientation | 0.32 | ||
| Parallel | 32 | 8 | |
| Non-parallel | 20 | 10 | |
| Margin | 0.53 | ||
| Well-circumscribed | 4 | 1 | |
| Indistinct | 12 | 4 | |
| Angular | 7 | 0 | |
| Microlobulated | 23 | 10 | |
| Spiculated | 6 | 3 | |
| Boundary | 0.40 | ||
| Abrupt | 47 | 18 | |
| Echogenic halo | 5 | 0 | |
| Echogenicity | 0.82 | ||
| Anechoic | 0 | 0 | |
| Hyperechoic | 1 | 0 | |
| Complex | 0 | 0 | |
| Hypoechoic | 27 | 9 | |
| Isoechoic | 24 | 9 | |
| Acoustic attenuation | 0.53 | ||
| None | 48 | 18 | |
| Enhancement | 4 | 0 | |
| Shadowing | 0 | 0 | |
| Calcification | <0.01 | ||
| None | 50 | 10 | |
| With calcification | 2 | 8 | |
| Final assessment | <0.01 | ||
| Category 4a | 46 | 9 | |
| Category 4b | 4 | 2 | |
| Category 4c | 2 | 6 | |
| Category 5 | 0 | 1 | |
a)
Additional synchronous benign breast lesion.
b)
Additional synchronous malignant breast lesion.