Figure 3.

Axial [¹⁸F]FDG PET/CT showing increased uptake of [¹⁸F]FDG in the lateral wall in a female patient with cardiac sarcoidosis. Notably, myocardial inflammation at [¹⁸F]FDG PET may be difficult to distinguish from incomplete suppression of myocardial glucose utilization. Correlation with myocardial perfusion imaging, as well as clinical features and other imaging modalities, may be useful in this regard. In this case, the treatment decision was based on multiple factors, including scarring on cardiac MRI, positive lymph node biopsy, and increasing burden of ventricular arrhythmias. (A) CT; (B) PET; (C) PET/CT.