SPECT/CT images demonstrated uptake in physiologically PD-L1-expressing organs, such as the lungs, liver, spleen, and bone marrow, and higher (primary) tumor-to-non-target ratios at the later time point (2 h p.i.): the lung (T:L ratio of 2.69), the blood-pool activity (T:BP ratio of 2.22), and the blood pool for lymph nodes metastases (T:BP ratio of 2.02). This evidence concerns the gene CD274 and neoplasm.