FOLH1 and neoplasm: After PET images quantification, [18F]F-PSMA-617-NODA ([18F]1) at 60 and 120 min showed a significant increase of tumour uptake, expressed as tumour-to-contralateral healthy brain (7.75 ± 3.06 at 60’ and 10.92 ± 3.56 at 120’) compared to [18F]F-PSMA-617-RESCA ([18F]2) (2.93 ± 1.23 at 60’ and 2.93 ± 0.08 at 120’) (Fig. 5B, C and Additional file 1: S72A).