Left ventricular diverticulum in two adult patients.

Left ventricular diverticulum is a rare congenital anomaly. In the adult population, the incidence was reported to be 0.26% in nonselected patients who underwent cardiac catheterization. Diverticula are usually localized near the apex and most often involve the inferior or anterior parietal walls of the left ventricle. In this report, two cases with congenital left ventricular diverticulum are presented, and the pathophysiologic, diagnostic, and therapeutic approaches of this cardiac malformation are discussed.