FOLH1 and neoplasm: Representative images of 68Ga-PSMA-617 scans are shown in Figs. 1–5: primary tumor at 5 days (Fig. 1) and 1 week (Fig. 2) after prostate biopsy, bilateral focal lesions in prostate at 3 weeks after biopsy (Fig. 3), single focal lesion in prostate at 1 month after biopsy (Fig. 4), and increased tumor uptake prior to biopsy (Fig. 5).