Preoperative chest X-ray, showing cardiomegaly suspicious of true left ventricular aneurysm complicating myocardial infarction. Frontal view. Abnormal evagination of left cardiac border is typical for an aneurysm involving the anterolateral and/or apical segment of the left ventricle. The aneurysm bulges out and stretches to the thoracic wall. There is associated pulmonary congestion due to heart failure.