Table 5 Clinical and pathological characteristics of micropapillary ductal carcinoma in situ and non micropapillary ductal carcinoma in situ treated with breast-conserving surgery
From: Micropapillary ductal carcinoma in situ of the breast: an inter-institutional study
Micropapillary ductal carcinoma in situ (%) | Non micropapillary ductal carcinoma in situ (%) | P-value | |
|---|---|---|---|
14 (100) | 274 (100) | ||
Nuclear grade | |||
Low | 4 (29) | 88 (32) | 0.054 |
Intermediate | 1 (7) | 89 (33) | |
High | 9 (64) | 97 (35) | |
Nuclear grade | |||
Low/intermediate | 5 (36) | 177 (65) | 0.028 |
High | 9 (64) | 97 (35) | |
Extent (mm) | |||
≤20 | 10 (71) | 230 (84) | 0.261 |
>20 | 4 (29) | 44 (16) | |
Extent (mm) | |||
Mean | 16 | 14 | 0.482 |
Median | 14 | 11 | |
Necrosis | |||
Yes | 8 (57) | 191 (70) | 0.321 |
No | 6 (43) | 83 (30) | |
Microinvasion | |||
Yes | 3 (21) | 43 (16) | |
No | 11 (79) | 219 (80) | 0.712 |
Unknown | 0 | 12 (4) | |
Margin width (mm) | |||
<1 | 6 (43) | 95 (35) | |
1–9 | 3 (21) | 67 (24) | 0.885 |
10 or more | 5 (36) | 104 (38) | |
Unknown | 0 | 8 (3) | |
Radiotherapy | |||
Yes | 11 (79) | 226 (83) | 0.721 |
No | 3 (21) | 48 (17) | |
Van Nuys Prognostic Index | |||
1 | 6 (43) | 123 (45) | |
2 | 7 (50) | 139 (51) | 0.173 |
3 | 1 (7) | 4 (1) | |
Unknown | 0 | 8 (3) | |
