Serous adenocarcinomas display a 6.6-fold higher PLAC1 expression (P < 0.01) relative to endometrioid adenocarcinomas, and carcinosarcomas display a 16.5-fold higher PLAC1 expression (P < 0.07) relative to endometrioid adenocarcinomas. Here, PLAC1 is linked to serous adenocarcinoma.