We identified 3.8% (25/586 patients) DACH1 gene mutations in uterine cancer somatic samples in the TCGA PCA of endometrial and carcinosarcoma patients, which was significantly lower than the 18.5% (12/65, p = 1.05E-05) seen in the MCC patient cohort. This evidence concerns the gene DACH1 and carcinosarcoma.