FDG PET/CT in Dressler Syndrome.

Nuclear imaging has paramount role in the evaluation of 4I (infective, inflammatory, innervation, infiltrative) cardiac diseases. We present a case of persistent pyrexia post-percutaneous transluminal coronary angioplasty with a history of inferior wall myocardial infarction 2 months back. Repeat coronary angiogram revealed that Right Coronary Artery (RCA) thrombus and IV antibiotics were started in suspicion of coronary stent infection. 18 F-FDG PET/CT revealed no hypermetabolism along RCA stent, with uptake along pericardium and inferior wall. 99m Tc-MIBI myocardial perfusion study showed perfusion defect in RCA territory corresponding to hibernating viable myocardium. Eventually patient was diagnosed with Dressler syndrome. Thus, molecular imaging helped in narrowing differentials in post cardiac intervention pyrexia and precise diagnosis.