The most frequently amplified oncogenes in gastric cancers, including MYC, ERBB2 (encoding for HER2), and CCNE1 (encoding for cyclin E), showed higher prevalence in the higher CDX2-expressing group, which was statistically significant for MYC (Fisher’s exact test p = 0.008, Figure 2). The gene discussed is ERBB2; the disease is gastric cancer.