“…FDG-PET is superior to gallium (Ga-67) imaging and bone scintigraphy (eg, Technetium-99m) in detecting soft-tissue infections and differentiating them from degenerative arthritis. However, the specificity of FDG-PET is considerably reduced by the presence of tumors, degenerative changes, and/or spinal implants [39] , [40] – 41] .…”