PDIA3 and endometrial serous adenocarcinoma: Among different tissue types, the expression of PDIA3 in endometrioid endometrial adenocarcinoma (EEA) was higher than that in mixed serous and endometrioid (MSAE) (P = 0.014) and serous endometrial adenocarcinoma (SEA) (P = 0.0066) (Figure 3C).