CD274 and neoplasm: In the present work, we used the results of PD-L1 pathological examination for patient screening in accordance with criteria (TPS>1%, PD-L1-positive cases; TPS>50%, PD-L1 high-expression cases) 26, 27 to analyze the efficiency of [89Zr]Zr-DFO-KN035 immunoPET in noninvasive, in vivo, and tumor diagnostic imaging and conducted a comparative radiographic analysis with [89Zr]Zr-DFO-KN035 in patients with tumors.