Methods: TMA of gastric cancer was formed to explore expression of hMSH2 and 16~INK4a in 120 gastric cancer by immunohistochemical methods(IHC).

• 方法:收集120例胃癌病变标本,制作胃癌病变组织微阵列蜡块,用免疫组织化学(immunohistochemistry,IHC)法检测hMSH2和p16~(INK4a)在胃癌组织中的表达。