In children presenting with chest pain cardiac etiological factors are rarely detected Cardiac etiologies (myocardial injury) of chest pain in pediatric cases include inflammation of the coronary arteries, anomalous origin of the left coronary artery stemming from pulmonary artery, and stenosis of coronary ostium. These conditions can be diagnosed through echocardiography or angiography. Myopericarditis, a relatively lesser known condition, which has been more commonly diagnosed in recent years, is a cause of chest pain and myocardial injury in pediatric patients. Myocarditis is primarily a disease of the pericardium; however, it can be accompanied by myocarditis. Myocardial involvement results in myocardial injury and elevation in cardiac enzymes. Detection of elevated cardiac enzymes (myoglobin, troponin I, creatinine kinase-CK, CK-MB) in a pediatric case presenting with chest pain should bring to mind myopericarditis in differential diagnosis. Myopericarditis in children can be idiopathic or caused by cardiotrophic viruses, vaccines, or drugs. Anti-inflammatory treatment usually controls the symptoms. Death rarely occurs. The current study reports a patient who presented with chest pain and elevated cardiac enzymes, and also responded to anti-inflammatory treatment after ruling out acute coronary syndrome through angiography.