Giant left atrial appendage aneurysm: the third ventricle!

The giant congenital intrapericardial aneurysmal dilatation of the left atrial appendage without mitral valve disease is a very rare condition that is generally diagnosed in older patients. The problem is usually accompanied with supraventricular rhythm disorders and life-threatening systemic thromboembolism. Complete surgical correction is possible, and it should be performed immediately after the diagnosis. We are going to describe a patient with a history of cerebral thromboembolism and palpitation who was diagnosed with congenital intrapericardial aneurysmal dilatation of the left atrial appendage. The condition was identified by means of echocardiography and was surgically treated by resection of the appendage containing the aneurysm.