Left atrial papillary fibroelastoma should be considered as a rare potential cause of myocardial infarction in patients with otherwise normal coronary arteries.
May warrant consideration in cryptogenic MI with normal coronaries; leaves open prevalence and screening needs.
A 70-year-old woman with no history of cardiac disease was admitted with sudden onset of chest pain. ECG was normal. On infusion of nitroglycerin up to 16 mL/L, the patient became pain free. Bedside transthoracic echo showed discrete hypokinesia in the apicolateral region of the left ventricle and a possible thrombus in the left atrium. Cardiac markers (troponin T and creatine kinase MB) were elevated. Coronary angiography was normal with the exception of a minor side vessel occlusion, …
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Waziri et al. (2014) studied this question.