Table 2.
Sonographic features of the TN and non-TN invasive breast carcinoma subgroups. Data are presented as frequency (%).
| Sonographic feature | TN (n = 104) | Non-TN (n = 439) | P value |
|---|---|---|---|
| Orientation | 0.548 | ||
| Parallel | 46 (44.2) | 180 (41) | |
| Not parallel | 58 (55.8) | 259 (59) | |
| Shape | 0.017 | ||
| Regular | 31 (29.8) | 84 (19.1) | |
| Irregular | 73 (70.2) | 355 (80.9) | |
| Margin | 0.026 | ||
| Circumscribed | 14 (13.5) | 30 (6.8) | |
| Not circumscribed | 90 (86.5) | 409 (93.2) | |
| Spiculated/angular margin | 0.004 | ||
| yes | 18 (17.3) | 138 (31.4) | |
| no | 86 (82.7) | 301 (68.6) | |
| Echo pattern | 0.005 | ||
| Hypoechoic | 77 (74.0) | 378 (86.1) | |
| Mixed solid echo | 20 (19.2) | 51 (11.6) | |
| Complex cystic and solid echo | 7 (6.7) | 10 (2.3) | |
| Posterior acoustic pattern | <0.0005 | ||
| Shadow | 8 (7.7) | 76 (17.3) | |
| Enhancement | 36 (34.6) | 70 (15.9) | |
| No change | 60 (57.7) | 293 (66.7) | |
| Calcifications | 0.009 | ||
| yes | 22 (21.2) | 151 (34.4) | |
| no | 82 (78.8) | 288 (65.6) | |
| BI-RADS score | 0.531 | ||
| 6 | 1 (1.0) | 13 (3.0) | |
| 5 | 28 (26.9) | 133 (30.3) | |
| 4C | 52 (50.0) | 193 (44) | |
| 4B | 18 (17.3) | 86 (19.6) | |
| 4A | 5 (4.8) | 14 (3.2) |