However, subsequent studies have shown that 22-60% of endometrial serous carcinoma (at least focal), 5-35% of endometrial endometrioid carcinoma, a wide range of non-clear cell cervical cancers, and only 78-67% of uterine clear cell carcinomas are positive for HNF1β (26, 27). This evidence concerns the gene HNF1B and endometrial endometrioid carcinoma.