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FIGURE 1. Whole-body 123I (A) and PET/CT (B–E) images obtained in patient who had history of papillary thyroid cancer and who had been treated with surgery and radioiodine therapy. Patient presented with markedly elevated serum thyroglobulin levels. (A) Normal 123I whole-body scan. Green arrows denote physiologic activity in right submandibular region, stomach, and bladder. (B–E) Coronal whole-body PET/CT, axial PET/CT, axial CT, and axial PET images, respectively. PET/CT revealed intensely increased 18F-FDG uptake in left supraclavicular region, corresponding to lymphadenopathy on CT (yellow arrows). Subsequent surgical resection revealed metastasis from papillary carcinoma.
