Both 111In-labeled tracers showed the highest tumor uptake compared to the 68Ga- and 64Cu-labeled tracers (28.5±2.6% IA/g for111In-CC34 and 52.1±6.5% IA/g for 111In-PSMA-617 at 1 h p.i.)which dropped to 16.5±1.9% IA/g and 21.2±1.6% IA/g at 48 h p.i., respectively. Here, FOLH1 is linked to neoplasm.