CD34 and metastatic malignant neoplasm in the lymph nodes: Sun et al. compared MVD CD34 in laryngeal cancer (26.5 ± 6.4) with the peritumoural tissue (12.2 ± 4.0) and found a significant difference (p < 0.05) among them, but also confirmed a higher MVD CD34 in patients with lymph node metastasis than that in the N0 group [17].