The percentage of both mDCs and pDCs expressing PD-L1/PD-L2 was correlated with specific ovarian cancer clinicopathological features, i.e., FIGO stage (I/II vs. III/IV), grading (II vs. III), and Kurman and Shih classification type (type I vs. type II). Here, PDCD1LG2 is linked to ovarian cancer.