| non-lyDCIS (n = 58) | lyDCIS (n = 38) | p value |
---|---|---|---|
Characteristic | |||
 Lesion size (mm) | 11 ± 14 | 13 ± 19 | NS |
 Lesions ≥20 mm | 11 (18.6%) | 11 (28.9%) | NS |
Architectural pattern | |||
 comedo | 9 (15.5%) | 17 (44.7%) | 0.0016 |
 solid | 18 (31.0%) | 12 (31.6%) | NS |
 cribriform | 29 (50.0%) | 21 (55.3%) | NS |
 micropapillary | 23 (39.7%) | 8 (21.1%) | NS |
Presence of necrosis | 32 (55.2%) | 29 (82.9%) | 0.0065 |
Presence of microcalcifications | 44 (75.9%) | 27 (75.0%) | NS |
Nuclear grade | |||
 low | 14 (24.1%) | 0 (0%) | 0.001 |
 intermediate | 29 (50.0%) | 16 (42.1%) | NS |
 high | 15 (25.9%) | 22 (57.9%) | 0.0016 |
Mitotic index | 2.4 ± 2.7 | 5.8 ± 4.7 | <  0.001 |
Ki67 index | 3.4 ± 4.4 | 6.9 ± 9.9 | NS |
Molecular subtype | |||
 luminal | 45 (77.6%) | 22 (57.9%) |  |
 HER2 | 4 (6.9%) | 13 (34.2%) | 0.0059* |
 triple negative | 9 (15.5%) | 3 (7.9%) |  |
TIL density (TIL-d) | |||
 grade 0 | 15 | 0 | NA |
 grade 1 | 43 | 0 | NA |
 grade 2 | 0 | 28 | NA |
 grade 3 | 0 | 10 | NA |
TIL phenotype | |||
 cells CD8+ | 42 ± 64 | 102 ± 113 | 0.0002 |
 cells CD4+ | 68 ± 138 | 165 ± 229 | 0.0018 |
 cells FoxP3+ | 7 ± 15 | 47 ± 54 | <  0.0001 |
 cells CD20+ | 57 ± 123 | 253 ± 411 | 0.00013 |
 cells CD38+ | 19 ± 33 | 41 ± 43 | 0.00051 |
 T/B ratio | 9.0 [6.2–11.7] | 4.6 [2.4–11.7] | 0.029 |
 CD8+/FoxP3+ ratio | 8.2 [5.1–11.3] | 11.6 [0.8–22.4] | NS |