Correlation analysis between RANKL IHC mean % positive stained tumor area and ex vivo or PET [89Zr]Zr-DFO-AMG162 uptake in all xenografts (blocking excluded) showed a correlation of r = 0.8634 (p < 0.0001) and r = 0.8934 (p < 0.0001), respectively. The gene discussed is TNFSF11; the disease is neoplasm.