Congenital aneurysm of left atrial appendage: a case report.

Aneurysm of the left atrial appendage (LAA) is a very infrequent condition. We report a case of a two-year-old child with congenital aneurysm of the LAA with a large thrombus in it. He presented with an episode of seizures with left-sided hemiparesis. Diagnosis was based on transthoracic echocardiography and magnetic resonance imaging. The patient was successfully treated by surgical resection of the aneurysm and removal of the thrombus.(J Card Surg 2010;25:37-40)