[Unusual cause of myocardial infarction]. / Une cause rare d'infarctus du myocarde.

The authors report the case of a woman with an acute myocardial infarction in whom coronary angiography performed a few hours earlier was completely normal. Transoesophageal echocardiography showed two thrombi in the left atrial appendage confirming the thromboembolic mechanism of this infarct.