FOLH1 and posterior cortical atrophy: However, some of the findings were ambiguous (11 lesions only detected in delayed scan, seven lesions only detected in early scan), but all of them were characteristic for PCa in follow-up (such as PSMA PET/CT, PSMA PET/MRI, CT, MRI), which support the results of a previous study that demonstrated [68Ga]Ga-PSMA PET/CT to be a helpful tool to determine malignancy in ambiguous lesions [24].