PMC6476808_01
Electrocardiography on admission, showing sinus tachycardia (140 beats/min) and ST-segment elevation in V1-6.
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Electrocardiography revealed sinus tachycardia (140 beats/min) and ST-segment elevation in V1-6 (Fig. 1).
Chest radiography on admission, showing acute pulmonary edema in both lungs.
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Chest radiography revealed acute pulmonary edema (Fig. 2).
Histopathological findings on autopsy. (A) Hematoxylin-eosin staining and (B, C) Elastica-Masson staining. Multiple small foci of myocardial necrosis are scattered in the left ventricle (B; lower magnification, C; higher magnification). (D-E) Few inflammatory cells infiltrate in the necrotic area of the myocardium (D; CD4 E; CD8). (F) Programmed death-ligand 1 (PD-L1; 22C3) staining. Overexpression of PD-L1 is not seen in cardiomyocytes.
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Autopsy revealed multiple small foci of myocardial necrosis with few inflammatory cells scattered in both ventricles (Fig. 3A-E). Overexpression of programmed death-ligand 1 (PD-L1) was not found in cardiomyocytes (Fig. 3F).