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Acute myocardial infarction caused by coronary embolism complicated by left ventricular free wall rupture.

Acute myocardial infarction with normal coronary arteries is a relatively infrequent finding. This report describes a rare combination of an embolic event to a normal coronary artery, presumably originating from a left atrial thrombus. An anomalous origin of the infarct-related coronary artery presumably enabled preferential penetration of the clot into the artery. The infarction was further complicated by rupture of the left ventricular free wall.