TABLE 1.
Comparative analysis of clinico‐radiological features between LVI‐negative and ‐positive cases.
| Variables | Total (n = 239) | LVI‐negative (n = 180) | LVI‐positive (n = 59) | p‐value |
|---|---|---|---|---|
| Age, Median (Q1, Q3) | 52 (45, 58.5) | 52 (45, 59) | 51 (44, 57) | 0.491 |
| Menopausal status, n (%) | 0.976 | |||
| Premenopausal | 111 (46.4) | 83 (46.1) | 28 (47.5) | |
| Postmenopausal | 128 (53.6) | 97 (53.9) | 31 (52.5) | |
| Location, n(%) | 0.166 | |||
| Left | 126 (52.7) | 100 (55.6) | 26 (44.1) | |
| Right | 113 (47.3) | 80 (44.4) | 33 (55.9) | |
| TIC curves, n (%) | 0.386 | |||
| Type 1 | 11 (4.6) | 8 (4.4) | 3 (5.1) | |
| Type 2 | 94 (39.3) | 75 (41.7) | 19 (32.2) | |
| Type 3 | 134 (56.1) | 97 (53.9) | 37 (62.7) | |
| FGT density, n (%) | 0.156 | |||
| Dense | 50 (20.9) | 42 (23.3) | 8 (13.6) | |
| Heterogeneously dense | 86 (36) | 59 (32.8) | 27 (45.8) | |
| Scattered | 73 (30.5) | 54 (30) | 19 (32.2) | |
| Predominantly fatty | 30 (12.6) | 25 (13.9) | 5 (8.5) | |
| BPE, n (%) | 0.960 | |||
| None/minimal | 64 (26.8) | 49 (27.2) | 15 (25.4) | |
| Mild | 104 (43.5) | 79 (43.9) | 25 (42.4) | |
| Moderate | 47 (19.7) | 34 (18.9) | 13 (22) | |
| Marked | 24 (10) | 18 (10) | 6 (10.2) | |
| Intratumoral high signal intensity, n (%) | 0.803 | |||
| Absence | 165 (69) | 123 (68.3) | 42 (71.2) | |
| Presence | 74 (31) | 57 (31.7) | 17 (28.8) | |
| Peritumoral edema, n (%) | <0.001 | |||
| Absence | 163 (68.2) | 143 (79.4) | 20 (33.9) | |
| Presence | 76 (31.8) | 37 (20.6) | 39 (66.1) | |
| Subcutaneous edema, n (%) | 0.401 | |||
| Absence | 197 (82.4) | 151 (83.9) | 46 (78) | |
| Presence | 42 (17.6) | 29 (16.1) | 13 (22) | |
| Intratumoral necrosis, n (%) | 0.593 | |||
| Absence | 194 (81.2) | 148 (82.2) | 46 (78) | |
| Presence | 45 (18.8) | 32 (17.8) | 13 (22) | |
| Internal enhancement pattern, n (%) | 0.156 | |||
| Homogeneous | 192 (80.3) | 149 (82.8) | 43 (72.9) | |
| Heterogeneous | 45 (18.8) | 30 (16.7) | 15 (25.4) | |
| Rim enhancement | 2 (0.8) | 1 (0.6) | 1 (1.7) | |
| Adjacent vessel sign, n (%) | 0.033 | |||
| Absence | 95 (39.7) | 79 (43.9) | 16 (27.1) | |
| Presence | 144 (60.3) | 101 (56.1) | 43 (72.9) | |
| Increased ipsilateral vascularity, n (%) | 0.683 | |||
| Absence | 125 (52.3) | 96 (53.3) | 29 (49.2) | |
| Presence | 114 (47.7) | 84 (46.7) | 30 (50.8) | |
| mrALN status, n (%) | 0.670 | |||
| Absence | 189 (79.1) | 144 (80) | 45 (76.3) | |
| Presence | 50 (20.9) | 36 (20) | 14 (23.7) | |
| Short‐axis diameter of largest ALN, Median (Q1, Q3) | 0.5 (0.3, 0.8) | 0.5 (0, 0.8) | 0.5 (0.4, 0.8) | 0.257 |
| DWI rim sign, n (%) | <0.001 | |||
| Absence | 177 (74.1) | 147 (81.7) | 30 (50.8) | |
| Presence | 62 (25.9) | 33 (18.3) | 29 (49.2) | |
Abbreviations: BPE, breast parenchymal enhancement; DWI, diffusion weighted imaging; FGT, fibroglandular tissue; LVI, lymphovascular invasion; mrALN, MRI‐reported axillary lymph node; TIC, time‐signal intensity.