PMC4610890_01
Axial fused 18F-FDG-PET/CT (SUV scale 0-6) demonstrating a FDG-avid (SUV max 7.8) nodule in the right lobe of the thyroid.. Abbreviations: 18F-FDG-PET/CT, 18F-fluorodeoxyglucose-positron emission tomography/computed tomography; SUV, standardized uptake value.
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The PET/CT demonstrated a left iliac bone metastasis, retroperitoneal lymphadenopathy and a F-fluorodeoxyglucose (FDG)-avid thyroid nodule, reported as suspicious of malignancy (Figure 1).
H&E section from the hemithyroidectomy specimen (low power scan).. Notes: (A) marks residual thyroid tissue and (B) denotes the 30 mm metastatic deposit of adenocarcinoma demonstrating prominent tumor necrosis. Inset with metastatic colonic adenocarcinoma confirmed by positive CDX2 immunohistochemistry.. Abbreviation: H&E, Hematoxylin and eosin.
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Postoperative histology is shown in Figure 2.