The median value of WNT4 mRNA level (RQ = 0.13; p = 0.14; Figure 4A) and WNT4-Ir divided into weak (0–1) and strong (2–3) staining intensity in all EC samples (p = 0.11; Figure 4D), WNT4 mRNA level (p = 0.36; Figure 4B) and WNT4-Ir (p = 0.65; Figure 4E) in endometrial samples of patients diagnosed with EEC and non-EEC, and WNT4 gene expression in EC samples classified depending on primary tumor status (p = 0.09; Figure 4C) did not correlate with patients’ OS. Here, WNT4 is linked to exstrophy-epispadias complex.