FOLH1 and neoplasm: The assumption is based on the following findings: first, the specific tracer uptake in LNCaP tumors in mice models of the tracers [68Ga]Ga-PSMA-11, [18F]F-PSMA-1007 and [177Lu]Lu-PSMA-617 agrees within the error limits 1 h post injection (7.70 ± 1.45%ID/g, 8.04 ± 2.39%ID/g, 11.20 ± 4.17%ID/g, respectively), albeit the organ distributions apart from the tumor differ to some extent (Eder et al. 2012; Benešová et al. 2015; Cardinale et al. 2017).