Suspicion of relapse

• [¹⁸F]FDG

  Clinical Evaluation	Glucose metabolism
  Type of Imaging	PET

• ¹²³I-Nal

  Clinical Evaluation	Iodine uptake
  Type of Imaging	Scintigraphy

• sodium [¹³¹I]iodide

  Clinical Evaluation	Iodine uptake
  Type of Imaging	Scintigraphy