CD274 and neoplasm: As shown in Table 3, the uptake of [89Zr]Zr-DFO-KN035 (56 h) in the primary tumor lesions of the 10 PD-L1-positive patients were relatively high (target-to-muscle ratio of SUVmax for 2.10-20.50 and target-to-muscle ratio of SUVmean for 1.49-10.42).