FOLH1 and medullary thyroid gland carcinoma: Additionally, these findings may have therapeutic implications since the uptake of 18F-NaF in both bone and extraosseous metastatic sites could provide an opportunity to explore the use of 223radium as a therapeutic agent in a select group of patients with MTC, similar to the potential theranostic use of radiolabeled somatostatin analogues and prostate-specific membrane antigen (PSMA) (23).