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Thyroid Follicular Carcinoma with Iodine-Avid Bone Metastases Showing Mild Uptake on Both 18F-FDG and 68Ga-DOTATOC PET/CT

  • Tevfik Fikret Çermik
  • Nurhan Ergül
Chapter

Abstract

Differentiated thyroid carcinoma (DTC) is usually characterized by good prognosis. Radioiodine scan is the first-line diagnostic tool to detect the metastatic disease. In patients with high Tg levels suggesting metastatic disease when radioiodine scan is negative, 18F-fluorodeoxyglucose positron emission tomography/computerized tomography (FDG PET/CT) is reported to be effective in defining the metastatic foci. Another imaging modality is somatostatin receptor imaging with PET/CT which can be used especially when 18F-FDG PET/CT is nondiagnostic. Peptide receptor radionuclide therapy with β-emitting radionuclides may be considered when somatostatin positivity is defined in metastatic lesions. In this case report, a patient with DTC having radioiodine-positive bone metastases showing mild uptake in 18F-FDG PET/CT and 68Ga-DOTATOC PET/CT is presented.

Keywords

Differentiated thyroid carcinoma Bone metastasis Radioiodine 18F-FDG PET/CT Somatostatin receptor imaging 

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  • Tevfik Fikret Çermik
    • 1
  • Nurhan Ergül
    • 1
  1. 1.University of Health Sciences, İstanbul Training and Research Hospital, Clinic of Nuclear MedicineIstanbulTurkey

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