Table 2 Sonographic features of MUMPC, cPMBC, and MMBC
From: The sonographic findings of micropapillary pattern in pure mucinous carcinoma of the breast
Features | MUMPC (n = 17) | cPMBC (n = 43) | MMBC (n = 28) | Significance |
|---|---|---|---|---|
Shape | χ2 = 2.562, p = 0.278 | |||
Regular | 3 | 14 | 5 | |
Irregular | 14 | 29 | 23 | |
Orientation | F = 1.801, p = 0.450 | |||
Parallel | 16 | 42 | 28 | |
Not parallel | 1 | 1 | 0 | |
Margin | χ2 = 2.421, p = 0.307 | |||
Circumscribed | 2 | 13 | 6 | |
Non-circumscribed | 15 | 30 | 22 | |
Echogenicity | F = 18.418, p = 0.007 | |||
Hyperechoic | 0 | 1 | 1 | |
Complex echogenicity | 6 | 14 | 7 | |
Hypoechoic | 5 | 5 | 15 | |
Isoechoic | 6 | 18 | 5 | |
Heterogeneous | 0 | 5 | 0 | |
Posterior acoustic features | F = 10.588, p = 0.037 | |||
No features | 2 | 5 | 6 | |
Enhancement | 15 | 38 | 17 | |
Shadowing | 0 | 0 | 3 | |
Combined pattern | 0 | 0 | 2 | |
Calcification | χ2 = 14.889, p = 0.001 | |||
Present | 5 | 6 | 16 | |
Absent | 12 | 37 | 12 | |
Vascularity | χ2 = 7.556, p = 0.023 | |||
Present | 7 | 17 | 20 | |
Absent | 10 | 26 | 8 | |
Blood flow grade | F = 10.866, p = 0.045 | |||
0 | 10 | 26 | 8 | |
1 | 7 | 15 | 15 | |
2 | 0 | 0 | 3 | |
3 | 0 | 2 | 2 | |
BI-RADS category | F = 26.427, p < 0.001 | |||
3 | 2 | 9 | 0 | |
4 | 13 | 31 | 12 | |
5 | 2 | 3 | 16 |