CTICasesDressler Syndrome (Post-Myocardial Infarction Pericarditis)
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Imaging findings
Chest CT demonstrates a large, loculated pericardial fluid collection leading to cardiac tamponade. Non-gated imaging also reveals thin-walled, non-enhancing myocardium consistent with a prior infarct in the distribution of the left circumflex coronary artery.
Key takeaways
Dressler syndrome is an immune-mediated pericarditis occurring days to weeks after a myocardial infarction. It characteristically presents with a sterile, exudative, or hemorrhagic pericardial effusion that can lead to tamponade, even if myocardial necrosis is subacute or went unrecognized initially.
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