Methods:65 cases of ESC and 53 cases of squamous epitheliums were examined for CEA,CD44s and CD44v6 proteins through immunohistochemical(S P)method.

• 方法 :应用免疫组织化学S P法检测了 65例ESC和 5 3例癌旁鳞状上皮组织中CEA、CD4 4s和CD4 4v6的表达情况。