Coronal view of fused 18F-FDG PET/CT image of a culture proven not infected vascular prosthetic graft. In this particular case, a 45-year-old male patient underwent emergency surgery by placement of a Viabahn in the left common iliac artery because of rupture. He was admitted to the hospital 6 weeks later with fever and sepsis. 18F-FDG PET/CT scanning showed increased FDG uptake at the level of the left iliac artery. Ultimately, no bacteria were cultured from the graft under antibiotic therapy.