MLH1 and endometrial cancer: The prognostic value of MLH1 methylation in endometrial cancer was studied by Shikama et al. who found, after adjustment for confounders, a similar overall survival for MMR‐D nonmethylated and sporadic cases, that is, those with an intact expression of all MMR proteins or loss of MLH1 expression but presence of MLH1 promoter hypermethylation.25