In the next stage, we assessed potential correlations between the expression of each MMR protein and several variables, including age, sex, tumor location, endoscopic appearance, histological type, differentiation grade, tumor stage, the expression of other immunohistochemical markers (Ki67, CK7, CK20, CDX2), and systemic inflammatory markers (NLR and PLR). The gene discussed is KRT20; the disease is neoplasm.