Association of left ventricular diverticula and sinus venosus atrial septal defect.

Left ventricular diverticula are congenital anomalies and are not as rare as previously thought. In adults, cardiac diverticula are generally accidental findings during imaging modalities, but concomitant disorders might frequently coexist. The pathophysiology, management, prognosis, and natural history of cardiac diverticula remain poorly understood and controversial. Definite diagnosis is often challenging due to similarities in appearance to other more common anomalies such as aneurysms, pseudoaneurysms, endocarditis, cysts, and hypertrophied trabeculations. We herein report a rare case of an adolescent presenting with sinus venosus atrial septal defect, partial anomalous venous connection, and left ventricular diverticula.