Methods Both carcinoma tissues and their surrounding tissues from 50 patients with breast invasive ductal carcinomas were studied for the expression of Fas and Fas L by immunohistochemical staining.

• 方法 用免疫组织化学方法对50 例乳腺浸润性导管癌及其癌旁组织的Fas 及Fas?L进行检测。