Table 2.
Pathologic outcomes at surgical resection
| Invasive disease (n = 57) | DCIS (n = 26) | |
|---|---|---|
| Tumor size | ||
| Clinical size | 2.1 ± 2.1 | 1.6 ± 1.3 |
| Pathologic size | 1.9 ± 1.9 | 1.4 ± 1.2 |
| Size the same on final pathology | 46 (83.6%) | 14 (60.9%) |
| Size smaller on final pathology | 6 (10.9%) | 6 (26.1%) |
| Size larger on final pathology | 3 (5.5%) | 3 (13.0%) |
| Tumor grade* | ||
| Grade stayed the same | 40 (70.1%) | 19 (73.0%) |
| Grade I to II or III | 2 (3.5%) | 0 (0%) |
| Grade II to III | 0 (0%) | 0 (0%) |
| Grade II to I | 9 (15.8%) | 1 (3.8%) |
| Grade III to II or I | 2 (3.5%) | 3 (11.5%) |
| Nodal status | ||
| Final node status same as clinical node status | 30 (73%) | 6 (100%) |
| Clinical node status N1, pathologic N0 | 0 (0%) | 0 (0%) |
| Clinical node status N0, pathologic N1 | 11 (26.8%) | 0 (0%) |
| Tumor upgrade | ||
| DCIS | NA | NA |
| Invasive disease | NA | 9 (34.6%) (all T1N0) |
*Clinical tumor size on imaging compared to pathologic tumor size
DCIS Ductal carcinoma in situ