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FIGURE 1. (A) Absence of myocardial antimyosin uptake (HLR = 1.4) in a scan with normal findings. (B) Moderate myocardial antimyosin uptake (HLR = 1.8) in a patient with myocarditis. (C) Intense myocardial antimyosin uptake (HLR = 2.5) in a patient with biopsy-verified myocarditis. (D) Right ventricular endomyocardial biopsy demonstrating a central focus of necrotic myocytes surrounded by lymphomononuclear cell infiltrate (arrows) diagnostic of myocarditis (hematoxylin and eosin, x200).
