Cardiac sarcoidosis on hybrid cardiac magnetic resonance/PET. LGE CMR images on the left with hybrid ¹⁸FDG CMR/PET images on the right. (A) Subepicardial (near transmural) LGE in the basal anteroseptum extending into the RV free wall with increased FDG uptake localizing to exactly the same region on fused CMR/PET (maximum standardized uptake value = 3.4; maximum tissue-to-background ratio = 2.3; and maximum target-to-normal myocardium ratio = 2.0). (B) Subepicardial LGE in the basal anterolateral wall with increased FDG uptake co-localizing to exactly that region on CMR/PET. (C) Patchy mid-wall LGE in the anterolateral wall with matched increased FDG uptake on CMR/PET. (D) Multi-focal LGE in the lateral wall with matched increased FDG uptake on CMR/PET. Reproduced with permission from Dweck MR et al. JACC Cardiovasc Imaging. 2018; 11(1):94–107.