Another question that deserves to be mentioned are the new application of tracers for histology other than the usual, like 68Ga PSMA-PET/CT that is commonly used in prostate cancer but that has been reported to be beneficial in radiotherapy contouring of patients affected by gliomas due its highly sensitivity for the detection of glioblastoma infiltration (Şahin et al. 2022). This evidence concerns the gene FOLH1 and prostate cancer.