FLT4 and metastatic malignant neoplasm in the lymph nodes: In addition, in the lymph node metastasis group, there was no statistically significant difference between the metastasis-positive and -negative lymph nodes (0.158±0.158 vs. 0.123±0.115; t=0.993; P>0.05) with regard to VEGFR-3 mRNA expression.