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Prenatally diagnosed left atrial appendage aneurysm with various postnatal imaging investigations: A case report

A congenital left atrial appendage aneurysm (LAAA) is a rare cardiac malformation, that is, usually diagnosed in adulthood. It is rarely diagnosed prenatally. In most cases, surgical resection is recommended soon after the diagnosis has been made due to the risk of arrhythmia and thrombotic events. The present report describes a case of LAAA that was prenatally diagnosed and was asymptomatic postnatally. Imaging revealed the relation of the cardiac and airway structures around the LAAA in detail. The patient underwent surgical resection of the LAAA successfully at 7 months of age and is currently healthy at 5 years of age.