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Figure 2 Antimyosin scintigraphy and findings in the endomyocardial biopsy in 65 patients with clinically suspected myocarditis. The antimyosin scan (AMS) was considered positive (+) when antimyosin antibody uptake in the ventricular wall was clearly visible; the endomyocardial biopsy was considered positive when histologic and/or immunohistologic evidence of myocarditis was detected.