Metastasis related markers including epithelial cadherin (E-cadherin) and matrix metalloproteinases-9 (MMP-9) were detected using the immunohistochemistry methods on paraffin embedded material.

• 同时通过免疫组织化学手段检测转移相关蛋白E-cadherin和MMP-9在原发灶中的表达水平。