Increasing rates of coronavirus disease 2019 (COVID-19) vaccination coverage will result in more vaccine-related side effects, including acute myocarditis. In Korea, we present a 24-year-old male with acute myocarditis following COVID-19 vaccination (BNT162b2). His chest pain developed the day after vaccination and cardiac biomarkers were elevated. Echocardiography showed minimal pericardial effusion but normal myocardial contractility. Electrocardiography revealed diffuse ST elevation in lead II, and V2-5. Cardiac magnetic resonance images showed the high signal intensity of T2- short tau inversion recovery image, the high value of T2 mapping sequence, and late gadolinium enhancement in basal inferior and inferolateral wall. It was presumed that COVID-19 mRNA vaccination was probably responsible for acute myocarditis. Clinical course of the patient was favorable and he was discharged without any adverse event.

中文翻译：

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COVID-19 mRNA 疫苗接种后急性心肌炎的心脏成像。

2019 年冠状病毒病 (COVID-19) 疫苗接种覆盖率的增加将导致更多与疫苗相关的副作用，包括急性心肌炎。在韩国，我们介绍了一名 24 岁男性在接种 COVID-19 疫苗后患有急性心肌炎 (BNT162b2)。接种疫苗后第二天出现胸痛，心脏生物标志物升高。超声心动图显示心包积液极少，但心肌收缩力正常。心电图显示 II 和 V2-5 导联弥漫性 ST 段抬高。心脏磁共振图像显示T2-短tau反转恢复图像的高信号强度，T2映射序列的高值，以及基底下壁和下侧壁的晚期钆增强。据推测，COVID-19 mRNA 疫苗接种可能是导致急性心肌炎的原因。