In a study by Groener et al. comparing PSMA uptake in [68Ga]Ga-PSMA-11 PET scans in patients with metastatic PCa before and after PSMA-RLT, uptake in liver tissue and salivary glands was inversely related to tumor burden before and after PSMA-RLT [28]. Here, FOLH1 is linked to neoplasm.