ENO2 and metastatic malignant neoplasm in the lymph nodes: Log-rank test showed the overall survival in subjects with older age (Fig. 2B, P < 0.001), male (Fig. 2C, P = 0.003), history of smoking (Fig. 2D, P < 0.001), KPS = 50–70 (Fig. 2E, P = 0.010), with lymph node metastasis (Fig. 2F, P = 0.020), higher level of LDH (Fig. 2H, P < 0.001), Cyfra21–1 (Fig. 2I, P < 0.001) and NSE (Fig. 2J, P < 0.001) were worse than that with the counterparts (Table 2).