However, GC patients with peritoneal metastasis had overexpressed CD34 on the surgical margin (no metastasis v.s metastasis, 13.6±1.122 v.s. 31.2±6.989 /HPF, p<0.001) and the Pouch of Douglas (no metastasis v.s. metastasis, 113.8±6.256 v.s. 179.4±29.45 /HPF, p<0.05) than those of non-metastasis patients (Fig. 4). The gene discussed is CD34; the disease is gastric cancer.