For example, DNA mismatch repair deficiency (MMRd), the presence of CTNNB1 exon-3 mutation or TP53 mutation, and p53 overexpression and null expression patterns on IHC analysis are each associated with poor survival in cases of endometrioid carcinoma [28,29,30,31,32,33,34]. This evidence concerns the gene TP53 and endometrioid adenocarcinoma.