Methods The expressions of ER,PR,p53 and c erbB 2 genes in 45 cases with invasive breast cancer and 20 cases with breast adenosis were tested by Immunohistochemical assay(S P).

• 方法 用免疫组织化学S P法检测 4 5例浸润性乳腺癌、2 4例癌旁组织、2 0例乳腺增生症ER、PR、p5 3、c erbB 2基因的表达水平。