Metastatic Cardiac Tumor Presenting as an Anteroseptal ST-Segment Elevation Myocardial Infarction in a Young Male
2021
In the appropriate clinical context, ST-segment elevation on electrocardiogram (ECG) necessitates prompt evaluation for coronary artery occlusion requiring reperfusion with percutaneous coronary intervention. Conversely, the etiology of ST-segment elevation may be representative of an alternative diagnosis other than myocardial infarction. We report the case of a patient with a history of primary bone sarcoma who presented for further evaluation of a large pericardial effusion identified on an outpatient echocardiogram and was found to have ST-segment elevation on ECG in the absence of any cardiopulmonary symptoms. The ECG abnormalities were attributed to a likely persistent current of injury resulting from a mass in the interventricular septum, likely representative of a metastatic lesion of his known malignancy. This case highlights the importance of maintaining a broad differential for ST-segment elevation, particularly in patients without symptoms of angina and those with a history of aggressive or relapsing cancer to minimize the morbidity and mortality of invasive procedures.
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