[Cardiac infection by Listeria monocytogenes].

We report the case of a 56-year-old man showing numerous cardiovascular manifestations of Listeria infection (myo-pericarditis, coronary vasospasm, intracavitary vegetations/thrombus, sinoatrial blocks). Cardiac magnetic resonance and echocardiography images provided an unexpected picture of this infection, and were relevant for the appropriate clinical management. Transthoracic and transesophageal echocardiography were useful for assessing the presence of an endocavitary mass. Tissue characterization by cardiac magnetic resonance confirmed the presence of a thrombus and revealed signs of active inflammation in the myocardial wall, pericardium and vascular pedicle.