Table 4 Upstaging risk factor analysis for ductal carcinoma in situ diagnosed using mammography (MG)-guided procedures (N = 72)
Variables | Overall | DCIS (n = 67) | Invasive cancer (%) (n = 5) | Pa |
|---|---|---|---|---|
MG-associated factors | ||||
BI-RADS category | 72 | 0.72 | ||
3 | 1 | 0 | ||
4 | 9 | 0 | ||
4a | 16 | 1 (5.9) | ||
4b | 28 | 4 (12) | ||
4c | 11 | 0 | ||
5 | 2 | 0 | ||
Breast density | 72 | >0.99 | ||
B | 1 | 0 | ||
C | 63 | 5 | ||
D | 3 | 0 | ||
Mass or distortion | 67 | 0.43 | ||
No | 56 | 4 (6.7) | ||
Yes | 6 | 1 (14) | ||
MG calcification | 67 | >0.99 | ||
No | 2 | 0 | ||
Yes | 61 | 4 (6.2) | ||
Biopsy DCIS factors | ||||
Diagnostic method | 72 | 0.65 | ||
ST-VAB | 28 | 3 (9.7) | ||
WLSB | 39 | 2 (4.9) | ||
DCIS grade | 61 | >0.99 | ||
Low | 13 | 1 | ||
Intermediate | 27 | 1 | ||
High | 18 | 1 | ||
Suspicion of microinvasion | 71 | (NA) | ||
No | 66 | 5 (7.0) | ||
Yes | 0 | 0 | ||
ER | 57 | >0.99 | ||
Negative | 6 | 0 | ||
Positive | 46 | 5 (9.8) | ||