There was a significant correlation between increased PD-L1 expression on tumour cells (TPS, p = 0.015), as well as all PD-L1 staining cells (CPS, p = 0.028) and lymph node metastasis, while there was no significant difference for PD-L1 expression on immune cells (IC-Score). The gene discussed is CD274; the disease is metastatic malignant neoplasm in the lymph nodes.