case_images: PMC6180898_01
case_images: (a, b) Pre-operative contrast-enhanced CT scan of the neck and chest. A large enhancing mass lesion with central necrosis in the right lobe of the thyroid causing compression and deviation of the trachea to the left side.
case_images: bjrcr.20150322.g001.jpg
case_images: PMC6180898_01_bjrcr.20150322.g001.jpg
case_images: fig1
case_images: Contrast-enhanced CT imaging (Figure 1) performed previously showed a large enhancing mass involving the right lobe and isthmus of the thyroid gland with multiple subcentimetre nodules in bilateral lungs.
case_images: (a-f) 18F-FDG PET-CT. (a, b) CT and fused 18F-FDG PET-CT transaxial images showing residual thyroid tissue in the neck, predominantly on the left side; (c) fused 18F-FDG PET-CT transaxial image shows multiple small lung nodules; (d, e) CT and fused 18F-FDG PET-CT transaxial images show a sclerotic lesion in the vertebra with mild FDG uptake; (f) coronal 18F-FDG PET-CT fused image shows minimal FDG uptake in the sellar lesion. 18F-FDG PET-CT, 18-fludeoxyglucose positron emission tomography-CT.
case_images: bjrcr.20150322.g002.jpg
case_images: PMC6180898_01_bjrcr.20150322.g002.jpg
case_images: fig2
case_images: Whole-body 18F-fludeoxyglucose positron emission tomography-CT (18F-FDG PET-CT) scan (Figure 2) demonstrated significant residual thyroid tissue in the thyroid bed, multiple skeletal metastases with mild FDG uptake and bilateral pulmonary nodules.
case_images: (a-d) MRI of the brain. T
  1 weighted image in the sagittal plane (a) showing a mildly hypointense lesion (arrow) based over the sphenoid bone seen in the suprasellar region. The lesion is isointense on sagittal T
  2 weighted image (b) and does not show any bleeding or necrosis within. T
  1 and T
  2 weighted images in the coronal plane (c, d) showing the lesion (arrows) in the suprasellar region with sparing of normal pituitary (outlined arrow). The sphenoid sinus (asterisk) is also normal.
case_images: bjrcr.20150322.g003.jpg
case_images: PMC6180898_01_bjrcr.20150322.g003.jpg
case_images: fig3
case_images: Post-therapy I-131 whole body scan. Anterior and posterior images show a remnant in the thyroid bed with intense iodine uptake, multiple iodine-avid skeletal metastases and mild iodine uptake in the lesion in the sellar region (outlined arrow).
case_images: bjrcr.20150322.g004.jpg
case_images: PMC6180898_01_bjrcr.20150322.g004.jpg
case_images: fig4
case_images: A post-therapy scan (Figure 4) revealed an intensely iodine-avid remnant in the thyroid bed, multiple skeletal metastasis and faint uptake in the sellar region.