Table 2 exhibits the associations between MUC2 immunoexpression and its clinical relevance in rectal adenocarcinoma. Upregulated MUC2 expression was considerably connected with the pre-CCRT and post-CCRT positive nodal status (p = 0.001 and p < 0.001), advanced pre-CCRT and post-CCRT tumor status (p = 0.022 and p < 0.001), and vascular invasion (p = 0.015). Furthermore, tumors with high MUC2 expression were considerably connected with no or little response to CCRT (p = 0.006). The gene discussed is MUC2; the disease is rectum adenocarcinoma.