Table 3 Ultrasound characteristics of AR status in different molecular subtypes
Characteristics | TNBC (n = 18) | Luminal A (n = 36) | Luminal B (n = 23) | HER2 overexpression (n = 27) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AR +  (n = 3) | AR– (n = 15) | p value | AR +  (n = 30) | AR– (n = 6) | p value | AR +  (n = 20) | AR– (n = 3) | p value | AR +  (n = 18) | AR– (n = 9) | p value | |
Shape | Â | Â | 1.000 | Â | Â | 0.167 | Â | Â | 0.453 | Â | Â | 1.000 |
 Regular | 0 (0.0%) | 1 (6.7%) |  | 0 (0.0%) | 1 (16.7%) |  | 3 (15.0%) | 1 (33.3%) |  | 2 (11.1%) | 1 (11.1%) |  |
 Irregular | 3 (100.0%) | 14 (93.3%) |  | 30 (100.0%) | 5 (83.3%) |  | 17 (85.0%) | 2 (66.7%) |  | 16 (88.9%) | 8 (88.9%) |  |
Orientation | Â | Â | 1.000 | Â | Â | 0.677 | Â | Â | 1.000 | Â | Â | 0.695 |
 Parallel | 2 (66.7%) | 12 (80.0%) |  | 18 (60.0%) | 3 (50.0%) |  | 10 (50.0%) | 2 (66.7%) |  | 10 (55.6%) | 4 (44.4%) |  |
 Vertical | 1 (33.3%) | 3 (20.0%) |  | 12 (40.0%) | 3 (50.0%) |  | 10 (50.0%) | 1 (33.3%) |  | 8 (44.4%) | 5 (55.6%) |  |
Hyperechoic halo | Â | Â | 1.000 | Â | Â | 1.000 | Â | Â | 0.538 | Â | Â | 1.000 |
 Absent | 2 (66.7%) | 12 (80.0%) |  | 16 (53.3%) | 3 (50.0%) |  | 13 (65.0%) | 1 (33.3%) |  | 11 (61.1%) | 6 (66.7%) |  |
 Present | 1 (33.3%) | 3 (20.0%) |  | 14 (46.7%) | 3 (50.0%) |  | 7 (35.0%) | 2 (66.7%) |  | 7 (38.9%) | 3 (33.3%) |  |
Margin | Â | Â | 0.515 | Â | Â | 0.066 | Â | Â | / | Â | Â | 0.333 |
 Smooth | 0 (0.0%) | 6 (40.0%) |  | 1 (3.3%) | 2 (33.3%) |  | 0 (0.0%) | 0 (0.0%) |  | 0 (0.0%) | 1 (11.1%) |  |
 Unsmooth | 3 (100.0%) | 9 (60.0%) |  | 29 (96.7%) | 4 (66.7%) |  | 20 (100.0%) | 3 (100.0%) |  | 18 (100.0%) | 8 (88.9%) |  |
Posterior acoustic pattern | Â | Â | 0.167 | Â | Â | 0.643 | Â | Â | 0.253 | Â | Â | 1.000 |
 No-shadowing | 2 (66.7%) | 15 (100.0%) |  | 20 (66.7%) | 5 (83.3%) |  | 11 (55.0%) | 3 (100.0%) |  | 13 (72.2%) | 6 (66.7%) |  |
Shadowing | 1 (33.3%) | 0 (0.0%) | Â | 10 (33.3%) | 1 (16.7%) | Â | 9 (45.0%) | 0 (0.0%) | Â | 5 (27.8%) | 3 (33.3%) | Â |
Calcification | Â | Â | 1.000 | Â | Â | 0.109 | Â | Â | 1.000 | Â | Â | 1.000 |
 Absent | 1 (33.3%) | 7 (46.7%) |  | 5 (16.7%) | 3 (50.0%) |  | 8 (40.0%) | 1 (33.3%) |  | 4 (22.2%) | 2 (22.2%) |  |
 Present | 2 (66.7%) | 8 (53.3%) |  | 25 (83.3%) | 3 (50.0%) |  | 12 (60.0%) | 2 (66.7%) |  | 14 (77.8%) | 7 (77.8%) |  |
Echo pattern | Â | Â | 0.314 | Â | Â | 0.024* | Â | Â | 1.000 | Â | Â | 0.538 |
 Hypoechoic | 1 (33.3%) | 1 (6.7%) |  | 2 (6.7%) | 3 (50.0%) |  | 1 (5.0%) | 0 (0.0%) |  | 2 (11.1%) | 0 (0.0%) |  |
 Heterogeneous | 2 (66.7%) | 14 (93.3%) |  | 28 (93.3%) | 3 (50.0%) |  | 19 (95.0%) | 3 (100.0%) |  | 16 (88.9%) | 9 (100.0%) |  |
Adler grade | Â | Â | 1.000 | Â | Â | 1.000 | Â | Â | 0.229 | Â | Â | 1.000 |
 0–2 | 1 (33.3%) | 6 (40.0%) |  | 15 (50.0%) | 3 (50.0%) |  | 10 (50.0%) | 3 (100.0%) |  | 1 (5.6%) | 0 (0.0%) |  |
 3 | 2 (66.7%) | 9 (60.0%) |  | 15 (50.0%) | 3 (50.0%) |  | 10 (50.0%) | 0 (0.0%) |  | 17 (94.4%) | 9 (100.0%) |  |
Elasticity score | Â | Â | 1.000 | Â | Â | 0.374 | Â | Â | 0.155 | Â | Â | 1.000 |
 2–3 | 2 (66.7%) | 7 (46.7%) |  | 12 (40.0%) | 4 (66.7%) |  | 4 (20.0%) | 2 (66.7%) |  | 4 (22.2%) | 2 (22.2%) |  |
 4–5 | 1 (33.3%) | 8 (53.3%) |  | 18 (60.0%) | 2 (33.3%) |  | 16 (80.0%) | 1 (33.3%) |  | 14 (77.8%) | 7 (77.8%) |  |
BI-RADS | Â | Â | 1.000 | Â | Â | 0.643 | Â | Â | 1.000 | Â | Â | 0.683 |
 3-4a | 1 (33.3%) | 3 (20.0%) |  | 10 (33.3%) | 1 (16.7%) |  | 5 (25.0%) | 1 (33.3%) |  | 9 (50.0%) | 3 (33.3%) |  |
 4b-5 | 2 (66.7%) | 12 (80.0%) |  | 20 (66.7%) | 5 (83.3%) |  | 15 (75.0%) | 2 (66.7%) |  | 9 (50.0%) | 6 (66.7%) |  |