Table 2. Clinicoradiologic and Pathologic Features, Stratified by Two IHC Subtypesa.
| IHC Subtype | Non-TN (n = 166) | TN (n = 34) | P Value |
|---|---|---|---|
| Patient age (mean ± SD, range) | 57.5 ± 10.7 (33 - 80) | 54.9 ± 11.3 (33 - 80) | 0.222 |
| Symptoms | 0.627 | ||
| Yes | 49 (63.6) | 22 (64.7) | |
| No | 28 (36.4) | 12 (35.3) | |
| MMG finding | 0.215 | ||
| Asymmetry | 19 (11.5) | 2 (5.9) | |
| Mass | 102 (61.5) | 25 (73.5) | |
| Microcalcification ± mass | 38 (22.8) | 4 (11.8) | |
| Negative | 7 (4.2) | 3 (8.8) | |
| US BI-RADS | 0.750 | ||
| 4a | 31 (18.7) | 6 (17.7) | |
| 4b | 17 (10.2) | 5 (14.7) | |
| > 4c | 118 (71.1) | 23 (67.6) | |
| Cancer type | 0.021 | ||
| IDC | 154 (92.8) | 30 (88.2) | |
| Mucinous | 9 (5.4) | 0 (0) | |
| Medullary | 2 (1.2) | 3 (8.9) | |
| Papillary | 1 (0.6) | 1 (2.9) | |
| Histologic grade | < 0.001 | ||
| 1 | 43 (26.5) | 1 (3.0) | |
| 2 | 87 (53.7) | 6 (18.2) | |
| 3 | 32 (19.8) | 26 (78.8) | |
| T-stage | 0.027 | ||
| T1 | 89 (53.6) | 12 (35.3) | |
| T2 | 68 (11.0) | 22 (64.7) | |
| T3 | 9 (5.4) | 0 (0) |
Abbreviations: BI-RADS, breast imaging reporting and data system; IDC, invasive ductal carcinoma; IHC, immunohistochemical; MMG, mammographic; SD, standard deviation; TN, triple negative; US, ultrasound.
aValues are expressed as No. (%).