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FIG 1. Pharyngeal Teflon granuloma (case 1).
A, Sagittal PET scan shows a large area of dramatically increased FDG uptake in the posterior pharynx (arrow).
B, Axial unenhanced CT scan (performed 2 days before combined PET/CT) shows heterogeneously increased attenuation throughout the posterior pharyngeal mass. The clivus is eroded (arrow), and surrounding soft tissues are infiltrated. On a contrast-enhanced CT scan, the increased attenuation might be mistaken for enhancement.
C, Fused PET/CT scan obtained at a slightly lower level than that of B demonstrates that the FDG uptake corresponds to the erosive mass.
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