Table 2. The pathologic characteristics between IMPC patients with and without recurrence.
| IMPC1 with recurrence | IMPC without recurrence | |
| Total number | 8 | 43 |
| LVI 2 | ||
| Without LVI | 1(12.5%) | 17(39.5%) |
| Single LVI | 0(0%) | 8(18.6%) |
| Multiple LVI | 7(87.5%) | 18(41.9%) |
| Proportion of IMPC | ||
| <25% | 3(37.5%) | 5(11.6%) |
| 25–75% | 3(37.5%) | 14(26.4%) |
| >75% | 2(25%) | 24(55.8%) |
| Nuclear Grade | ||
| G13 | 0(0%) | 2(4.7%) |
| G24 | 4(50%) | 20(46.5%) |
| G35 | 4(50%) | 21(48.8%) |
1
IMPC: invasive micropapillary carcinoma;
2
LVI: Lymphovascular invasion;
3
G1: Grade 1;
4
G2: Grade 2;
5
G3: Grade 3.