Left auricle myxoma, a rare cause of myocardial infarction

The association of left auricle myxoma and myocardial infarction is exceptional. Nevertheless, a causal relationship exists between the 2 affections. A 54 year-old woman was hospitalised in a rush for myocardial infarction. Sonography revealed a voluminous tumoral formation in the left auricle. The diagnosis of myxoma was confirmed by the anatomopathological examination. Although systemic embolism represents the most frequent causal link between left auricle myxoma and myocardial infarction, hypercoagulability is another possible cause. This can be explained by the secretion of interleukins 6 and 8 by the myxoma.