To date, genetic alterations associated with remnant gastric cancer have included p53, Ki-ras, cyclooxygenase-2, and bcl-2 (Clarke et al, 1997; Yamashita et al, 1998; van Rees et al, 1999; Baba et al, 2001; Kawabe et al, 2002). This evidence concerns the gene KRAS and gastric cancer.