TNFSF11 and colorectal cancer: [89Zr]Zr-DFO-AMG162 was injected in mice bearing UM-SCC-22B human head and neck squamous cell carcinoma (positive RANKL) and HCT-116 human colorectal cancer xenografts (negative RANKL control) tumors and PET/CT images were acquired at 3 and 5 days p.i. As non-targeted control, UM-SCC-22B xenografts were injected with [89Zr]Zr-DFO-IgG2 (non-specific human IgG2 isotype).