Left ventricular giant pseudoaneurysm.

Left ventricular (LV) pseudoaneurysm is a rare complication of myocardial infarction. It may also occur as a complication of mitral valve surgery, chest trauma, and bacterial endocarditis. It forms when a cardiac rupture contains adherent pericardium or scar tissue and is typically located on the posterior or inferior LV wall. Pseudoaneurysms have a propensity to spontaneous rupture; hence, immediate surgical intervention is the treatment of choice for LV pseudoaneurysms diagnosed in the first months after myocardial infarction. The management of chronic LV pseudoaneurysms is still a subject of debate.