Objective To study the expression and elinical significance of CD34 and smooth muscle actin (SMA) in stroma of breast tissues and lesions.

• 摘要目的探讨乳腺良性与恶性病变组织间质中成纤维细胞CD34和平滑肌肌动蛋白(SMA)的表达情况及其临床意义。