A 65-year old woman was admitted with an inferior infarction. Six hours later she developed a pericarditis with specific ECG alterations in the anterior wall accompanied with pericardial and pleural effusion. This early form of true pericarditis after acute myocardial infarction can be explained as an exacerbation of a latent inflammation, whether or not triggered by the acute infarction.
Keywords: pericardial effusion; postmyocardial infarction syndrome; virus infection.