Pseudoaneurysm of the left ventricular free wall caused by tumor infiltration.

Ventricular pseudoaneurysms occur as complications of myocardial infarction, heart surgery, trauma, and infective endocarditis. The process involves rupture of the ventricular wall where a structural weakness exists and containment of the blood by the pericardium. Although various malignancies may invade the heart, a pseudoaneurysm of the left ventricle caused by tumor has not been reported.