Meanwhile, EMX2OS was identified as an independent prognostic factor (HR = 3.007, 95% CI = 1.090–8.297) together with the TNM stage (HR = 2.510, 95% CI = 1.071–5.883) and lymph node metastasis (HR = 2.358, 95% CI = 1.055–5.269, Figure 2b). Here, EMX2OS is linked to metastatic malignant neoplasm in the lymph nodes.