EPAS1 and metastatic malignant neoplasm in the lymph nodes: According to the statistical analysis, there was no significant correlation between the expression of HIF-2α and VEGF mRNA and age (p > 0.05), but the expression of HIF-2α and VEGF mRNA was positively correlated with FIGO stage and lymph node metastasis (p < 0.05, Table 2).