A Common Diagnostic Dilemma: Inflammation or Infarction.

Early infarct-associated pericarditis is a rare entity, given the availability of early coronary angiography and intervention. Although the electrocardiogram and the surface echocardiogram are initial studies, definitive imaging with cardiac magnetic resonance is recommended. We present a case of early infarct-associated pericarditis in the setting of a late-presenting silent right coronary artery myocardial infarction.