ENTPD1 and metastatic neoplasm: In metastatic cases with LA, PD-L1 expression was directly correlated to CD39 expression (r=0.76, p=0.049) and IDO1 (r=0.76, p=0.046), while in metastatic tumors without LA, we did not find any correlation between PD-L1 or any other biomarker studied.