Table 2.
Presence of tumor budding according to histologic type (ductal versus lobular/mixed) and molecular sub-type.
| Ductal | Lobular/Mixed | |||||
|---|---|---|---|---|---|---|
| Sub-Type | Total (%) (n = 58) |
Tumor Budding Absent (n = 21) | Tumor Budding Present (n = 37) |
Total (%) (n = 15) |
Tumor Budding Absent (n = 3) | Tumor Budding Present (n = 12) |
| ER+/HER2− | 29 (50%) | 11 (52.4%) | 18 (48.7%) | 11 (73.3%) | 3 (100%) | 8 (66.7%) |
| HER2+/ER+ | 13 (22.4%) | 5 (23.8%) | 8 (21.6%) | 3 (20%) | 0 | 3 (25%) |
| HER2+/ ER− | 6 (10.4%) | 3 (14.3%) | 3 (8.1%) | 1 (6.7%) | 0 | 1 (8.3%) |
| TNBC | 10 (17.2%) | 2 (9.5%) | 8 (21.6%) | 0 | 0 | 0 |
TNBC: Triple negative Breast Cancer.