F-18 fluorodeoxyglucose (FDG) embolism is a condition which results in uniform focal intense FDG-avid pulmonary focus without any underlying structural CT correlate with an unremarkable follow-up PET-CT scan 1. It is thought to occur as a result of clumping of FDG with blood when the blood is withdrawn in an FDG-loaded syringe to confirm its position in the vein. Subsequently, the FDG labeled clot is pushed as an embolus. It is, therefore, recommended to use a preplaced IV cannula for injecting FDG 2,3.
- 1. Kumar K. FDG Emboli on PET/CT Scan - A Case Report. Clin Oncol. 2016;1:1003
- 2. Hany TF, Heuberger J, von Schulthess GK. Iatrogenic FDG foci in the lungs : a pitfall of PET image interpretation. Eur Radiol. 2003; 13: 2122-2127
- 3. Kavanagh PV, Stevenson AW, Chen MY, Clark PB: Nonneoplastic diseases in the chest showing increased activity. Am J Radiology, 2004,183: 1133- 1141.