Disappearing False Aneurysm of the Ventricular Septum Without Rupture: A Complication of Acute Inferior Myocardial Infarction—A Case Report

Abstract

An interseptal false aneurysm of the left ventricle due to the dissection of the septum in a patient with acute inferior myocardial infarction is described. The aneurysm was demonstrated as a cystic bulge of the left ventricular cavity into the inferoposterior interventricular septum with a small orifice from the left ventricle without any protrusion or rupture into the right ventricular cavity. Two-dimensional echocardiography, magnetic resonance imaging, and dy namic computed tomography were the most useful and reliable noninvasive di agnostic modalities. Repeated examinations demonstrated a significant reduction of the aneu rysm in six months.