WNK3 and endometrioid adenocarcinoma: In general, ERs are more commonly expressed than PRs and while the expression of ERs and PRs is detected only in about 10% of mucinous and clear cell carcinomas, ERs positivity may be observed in more than 80% of serous and endometrioid carcinomas and the expression of PRs in 30–70% of these tumor types [54].