Postradioiodine Treatment Whole-Body Scan in the Era of 18-Fluorodeoxyglucose Positron Emission Tomography for Differentiated Thyroid Carcinoma with Elevated Serum Thyroglobulin Levels

Abstract

In patients with suspicious recurrence based on the Tg level after a normal postablation WBS, FDG PET/CT is the preferred scintigraphic method to localize disease rather than postempiric (131)I WBS. Empiric (131)I administration may be used only in patients who do not have a significant FDG uptake.