Figure 1: ¹⁸F-fluorodeoxyglucose positron emission tomography/computed tomography localization computed tomography image (a) demonstrates a soft-tissue mass along the aortic arch (arrow) and enlarged mediastinal lymph nodes (asterisk). Fused positron emission tomography/computed tomography (b), attenuated corrected (c) and nonattenuation corrected (d) positron emission tomography images demonstrating intense fluorodeoxyglucose uptake in the soft-tissue mass (arrows) and mild fluorodeoxyglucose activity in lymph nodes (asterisk)