p53 expression correlated with histological grade (P = 0.01); bcl-2 expression with pathological stage (P = 0.00); bax expression with male (P = 0.02), histological grade (P = 0.01), Borrmann type (P = 0.01), tumor location (P = 0.00), lymph node metastasis (P = 0.03), and pathological stage (P = 0.03); c-myc expression with Borrmann type (P = 0.00). This evidence concerns the gene MYC and neoplasm.