**6. Conclusions**

Radionuclide imaging of salivary glands has been used not only for functional assessment but also for comprehensive diagnosis including morphological information with the advent of single-photon emission computed tomography (SPECT)/CT and PET/CT. Although scientific evidence is limited, the advantages of radionuclide scanning should be determined. For RAI therapy, attention should be paid to adverse reactions. Coordination among healthcare providers including nurses, radiological technologists, and doctors of all departments involved in treatment is important for achieving effective outcomes.
