ABSTRACT Endometrial carcinoma is the most common malignancy in the deepest part of the uterus (endometrial). Failure of the DNA repair systems such as Mismatch repair (MMR) will occur microsatellite instability (MSI) if it do not repaired properly and is associated with endometrial carcinoma. MSH3 is one of the MMR genes which plays a role in the DNA repair system. The aim of this study is …