Fig. 1

a FDG-PET/CT demonstrating hypermetabolic mediastinal lymph nodes. b FDG-PET/CT showing a hypermetabolic portacaval lymph node, though the known liver metastasis was not FDG-avid (red arrow). Below these PET images, two CT scans of the abdomen & pelvis are shown: one before treatment was initiated (c) and one 6 months after treatment was completed (d). The dominant right liver lesion decreased from 5.7 × 4.4 cm to 3.9 × 3.6 cm in size (red arrow)