From: The diagnostic value of contrast-enhanced ultrasonography in breast ductal abnormalities
Characteristics | Benign, n (%) (n = 44) | Malignant, n (%) (n = 38) | χ 2/t | P |
---|---|---|---|---|
Shape |  |  | 16.067 |  < 0.001* |
 Regular | 26(59.1) | 6(15.8) |  |  |
 Irregular | 18(40.9) | 32(84.2) |  |  |
Margin |  |  | 19.953 |  < 0.001* |
 Circumscribed | 31(70.5) | 8(21.1) |  |  |
 Not circumscribed | 13(29.5) | 30(78.9) |  |  |
Inner echo |  |  | 14.024 |  < 0.001* |
 Homogeneous | 26(59.1) | 7(18.4) |  |  |
 Heterogeneous | 18(40.9) | 31(81.6) |  |  |
Size(cm) | 1.43 ± 0.84 | 1.98 ± 0.99 | -2.684 | 0.009* |
Posterior feature | Â | Â | 1.076 | 0.580 |
 None | 42(95.5) | 34(89.5) |  |  |
 Enhancement | 1(2.3) | 2(5.3) |  |  |
 Shadowing | 1(2.3) | 2(5.3) |  |  |
Blood flow classification | Â | Â | 12.775 | 0.002* |
 0 | 15(34.1) | 5(13.2) |  |  |
 1 | 24(54.5) | 16(42.1) |  |  |
 2&3 | 5(11.4) | 17(44.7) |  |  |
Microcalcificationsa |  |  | 16.791 |  < 0.001* |
 Presence | 2(4.5) | 16(42.1) |  |  |
 Absence | 42(95.5) | 22(57.9) |  |  |
MG | Â | Â | Â | Â |
 Calcifications | 15(34.1) | 23(60.5) |  |  |
 No calcification | 29(65.9) | 15(39.5) |  |  |