PD-L1 tumor uptake is low at all timepoints (SUVmax = 1.03 ± 0.23, 0.66 ± 0.16 and 0.90 ± 0.09 at 1–2, 4, and 24 h p.i., respectively) and was not significantly reduced by preinjection of 500 nmol of cold ligand. The gene discussed is CD274; the disease is neoplasm.