Of 228 tumors, 132 (57.9%) were T1 tumors and 154 (67.5%) were node-negative tumors; 151 (66.2%) and 152 (66.7%) were tumors with nuclear grade (NG) 3 and with high Ki-67 (> 30%), respectively; 99 (43.4%) were classified as TILs-High, 112 (49.1%) had CD8-positive T cells, 90 (39.5%) had PD-L1 expression on tumor cells, 203 (89.0%) were tumors with basal-like features, and 148 (64.9%) had BRCAness. Here, CD274 is linked to neoplasm.