From: Role of ultrasound in predicting the molecular subtypes of invasive breast ductal carcinoma
 | TN (n = 26) | Luminal A (n = 82) | Luminal B (n = 26) | HER2 (n = 26) | P value1 | P value2 | P value3 | ||||
---|---|---|---|---|---|---|---|---|---|---|---|
No. | % | No. | % | No. | % | No. | % | ||||
Age (years) | Â | Â | Â | Â | Â | Â | Â | ||||
 Mean ± SD | 53.39 ± 9.58 | 53.49 ± 13.35 | 52.31 ± 11.34 | 49.85 ± 14.86 | 0.778 | 0.713 | 0.114 | ||||
 Range | 36.0–70.0 | 23.0–75.0 | 34.0–70.0 | 28.0–86.0 |  |  |  | ||||
Size of lesion (cm) | Â | Â | Â | Â | Â | Â | Â | ||||
 Mean ± SD | 2.95 ± 1.68 | 3.18 ± 1.83 | 3.08 ± 1.51 | 3.02 ± 0.73 | 0.733 | 0.970 | 0.182 | ||||
 Range | 1.0–8.0 | 1.3–9.0 | 1.5–6.0 | 1.8–4.0 |  |  |  | ||||
Echogenicity | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 Isoechoic | 6 | 23.1 | 14 | 17.1 | 4 | 15.4 | 6 | 23.1 | 0.564 | 0.482 | 1.000 |
 Hypoechoic/heterogeneous | 20 | 76.9 | 68 | 82.9 | 22 | 84.6 | 20 | 76.9 |  |  |  |
Shape | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 Oval or rounded | 24 | 92.3 | 36 | 43.9 | 6 | 23.1 | 10 | 38.5 | 0.000* | 0.000* | 0.000* |
 Irregular | 2 | 7.7 | 46 | 56.1 | 20 | 76.9 | 16 | 61.5 |  |  |  |
Margin | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 Angular or spiculated | 2 | 7.7 | 61 | 74.4 | 16 | 61.5 | 12 | 46.2 | 0.000* | 0.000* | 0.002* |
 Circumscribed or lobulated | 24 | 92.3 | 21 | 25.6 | 10 | 38.5 | 14 | 53.8 |  |  |  |
Calcification | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 Present | 6 | 23.1 | 28 | 34.1 | 12 | 46.2 | 16 | 61.5 | 0.290 | 0.080 | 0.005* |
 Absent | 20 | 76.9 | 54 | 65.9 | 14 | 53.8 | 10 | 38.5 |  |  |  |
Orientation | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 Parallel | 10 | 38.5 | 12 | 14.6 | 2 | 7.7 | 6 | 23.1 | 0.009* | 0.008* | 0.229 |
 Non parallel | 16 | 61.5 | 70 | 85.4 | 24 | 92.3 | 20 | 76.9 |  |  |  |
Boundary | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 Abrupt interface | 22 | 84.6 | 19 | 23.2 | 12 | 46.2 | 20 | 76.9 | 0.000* | 0.004* | 0.482 |
 Echogenic halo | 4 | 15.4 | 63 | 76.8 | 14 | 53.8 | 6 | 23.1 |  |  |  |
Posterior feature | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 Posterior shadowing | 2 | 7.7 | 52 | 63.4 | 10 | 38.5 | 4 | 15.4 |  |  |  |
 Posterior enhancement or no posterior change | 24 | 92.3 | 30 | 36.6 | 16 | 61.5 | 22 | 84.6 | 0.000* | 0.008* | 0.084 |
LN status | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 Nodal metastasis | 6 | 23.1 | 23 | 28.0 | 22 | 84.6 | 20 | 76.9 | 0.618 | 0.000* | 0.000* |
 No nodal metastasis | 20 | 76.9 | 59 | 72.0 | 4 | 15.4 | 6 | 23.1 |  |  |  |
Multiplicity | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 Unifocal | 22 | 84.6 | 72 | 87.8 | 16 | 61.5 | 12 | 46.2 | 0.739 | 0.061 | 0.004* |
 Multifocal or multicentric | 4 | 15.4 | 10 | 12.2 | 10 | 38.5 | 14 | 53.8 |  |  |  |
Grade of IDC | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
 Low grade | 4 | 15.4 | 76 | 92.7 | 22 | 84.6 | 8 | 30.8 | 0.000* | 0.000* | 0.188 |
 High grade | 22 | 84.6 | 6 | 7.3 | 4 | 15.4 | 18 | 69.2 |  |  |  |