PMC8462928_01
Electrocardiograms
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Emergent electrocardiography demonstrated sinus tachycardia and ST-segment elevations and repolarization abnormalities (Figure 1).
Cardiac magnetic resonance imaging
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Cardiac myocardial resonance imaging (cMRI) demonstrated patchy gadolinium delayed enhancement within the right and left ventricular myocardia and pericardial thickening with enhancement, consistent with myocarditis or infiltrative disease though without T2-weighted evidence of edema (Figure 2).
Photomicrographs of explanted cardiac myocardium
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Upon transplantation, pathological examination of the explanted heart revealed diffuse biventricular fibrosis, non-caseating granulomas, and multi-nucleated giant cells consistent with severe cardiac sarcoidosis (Figure 3). 