In patients with lymph node metastasis, the tumoral PD-L1 expression (≥1%, 5%, 10%, 20%, 30% or 50% as cut-off value) was not associated with DFS (P=0.973, 0.996, 0.622, 0.881, 0.254, or 0.291) and OS (P=0.864, 0.943, 0.610, 0.675, 0.126 or 0.138) (Figure 3). The gene discussed is CD274; the disease is metastatic malignant neoplasm in the lymph nodes.