Snapshot A 58-year-old woman with a past medical history of systemic lupus erythematosus presents to the emergency room for sharp chest pain. She reports that it is worse with inspiration and gets better when she leans forward. On physical exam, there is a friction rub that is loudest when she leans forward. An electrocardiogram shows widespread ST elevation. Introduction Clinical definition login to view 1 more bullet Etiology login to view 20 more bullets Pathogenesis login to view 3 more bullets Prognosis login to view 2 more bullets Presentation Symptoms login to view 4 more bullets Physical exam login to view 6 more bullets Imaging Echocardiography login to view 2 more bullets Radiography login to view 4 more bullets Studies Labs login to view 3 more bullets Electrocardiogram (ECG) login to view 7 more bullets Making the diagnosis login to view 1 more bullet Differential Cardiac tamponade login to view 2 more bullets Myocardial infarction login to view 2 more bullets Treatment Conservative login to view 3 more bullets Medical login to view 14 more bullets Non-operative login to view 6 more bullets Complications Pericardial effusion and tamponade