Myopericarditis can present with clinical features similar to ST-elevation myocardial infarction (STEMI), including chest pain, electrocardiographic (ECG) ST elevations, and elevated cardiac biomarkers. This overlap often leads to the activation of acute coronary syndrome protocols and sometimes the administration of thrombolytic therapy. We report a case of a 24-year-old male initially diagnosed and treated as STEMI based on ECG and enzymatic findings. However, he underwent percutaneous coronary intervention (PCI), which revealed normal coronary arteries, and subsequent cardiac MRI ruled out infarction, confirming the diagnosis of acute myopericarditis. This case highlights the importance of keeping a broad differential diagnosis in young adults presenting with STEMI-like features and reinforces the role of advanced imaging in avoiding unnecessary interventions.
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