Regarding protein expression only on the tumor front (IF), statistically significant correlations were found between LN metastases and BAD and BID molecules (p = 0.032 and p = 0.032, respectively), histological differentiation and BAD (p = 0.052), maximum tumor diameter and BID and Ki-67 (p = 0.030 and p = 0.033, respectively), Astler–Coller stage and p53 (p = 0.020), as well as between the number of filtered lymph nodes (and stage N by TNM) and the expression of p53 protein (p = 0.001) and between the end of mucosal adenocarcinomas and the MDM2 molecule (p = 0.009). The gene discussed is MDM2; the disease is neoplasm.