ARHGAP25 and metastatic malignant neoplasm in the lymph nodes: The expression levels of ARHGAP25 in NSCLC tissues were significantly associated with tumor size (P = 0.015), TNM stage (P = 0.013), and lymph node metastasis (LNM; P = 0.015), but not with other clinicopathological factors (P > 0.05; Table 2).