CD274 and inflammatory breast carcinoma: “PDL1-high” tumors showed a more dense T-cell infiltration – as already reported by other groups in non-IBC [43, 46, 51] with positive correlation between PDL1 expression and the presence of elevated TILs-, higher expression of T-cell-specific and CD8+ T-cell-specific gene expression signatures, and higher expression of genes coding proteins related to the T-cell receptor.