(42.9% vs. 26.9%, p = 0.382) On the contrary, PD-L1 expression in tumour-infiltrating immune cells was slightly higher in type 1 endometrial carcinoma than type 2 (63.5% vs. 57.1%, p = 0.746) (Table 1 and Table 3). Here, CD274 is linked to endometrial carcinoma.