Left Ventricular False Aneurysm

Left ventricular false aneurysm, also known as pseudoaneurysm, is a rare and highly morbid pathology. It most commonly presents as a complication of myocardial infarction (MI). It occurs when an ischemic left ventricular free wall rupture (due to acute infarction) is contained as a hematoma communicating with the ventricular cavity. The rupture could become sealed by an adherent pericardium, organizing hematoma, thrombus, or scar tissue and gives the appearance of an aneurysm.[1][2] The wall of the false aneurysm consists only of fibrous tissue or pericardium and lacks the true layers of the ventricle (endocardium and myocardium).[3] False aneurysms tend to appear on the posterior and lateral wall segments and demonstrate a tightened neck compared to the aneurysm sac diameter.[4] These aneurysms have a higher propensity to rupture and necessitate timely diagnosis and management.[2]