Of these targets, the tumor cell targets: CEACAM, EGFR, integrin αvβ6, mesothelin, NTSR1, PSMA, TF, uPA/uPAR, and VEGFR/VEGF-A; and stromal targets: FAP, Fibronectin, MT1-MMP/MMP-14 and Integrin αvβ3 own most of the characteristics characterizing the ‘ideal’ imaging target, as compiled by Oosten et al. [49]. The gene discussed is FOLH1; the disease is neoplasm.