Fig. 2

18 F-FDG PET/CT demonstrated elevated FDG uptake in the proximal region of the mass, with a maximum standardized uptake value (SUVmax) of 5.1, while no increased FDG uptake was observed in the distal area
18 F-FDG PET/CT demonstrated elevated FDG uptake in the proximal region of the mass, with a maximum standardized uptake value (SUVmax) of 5.1, while no increased FDG uptake was observed in the distal area