And it is correlated with the lymph node status and tumor matastasis . we found the expression of vegf gene is higher in lung cancer tissue than in adjacent tissue by quantitative rt - pcr method 同时,应用荧光定量rt pcr方法检测了7例肺癌组织及相应癌旁组织中vegf的表达,发现肿瘤组织中vegf的表达水平高于癌旁组织。