CD274 and neoplasm: When evaluating the tumor microenvironment, immunostaining in the inflamed class showed enrichment of intratumoral CD8+ T cells (CD8 ≥ 1%, 58% vs. 30%, p = 0.08) and PD-L1 (PD-L1 ≥ 1%, 21% vs. 4%, p = 0.19) compared with the non-inflamed class.