A 57-year-old female with end-stage renal dysfunction was admitted to our hospital. The echocardiogram revealed a 9mm×22mm hyperechoic mass in the left atrial appendage (LAA). The mass was extremely mobile. Considering the high risk of embolic events, we decided on a surgical resection. Microscopic examination of the mass revealed a nodular focus of calcification and fibrosis with focal chronic inflammation of the atrial endocardium. The endocardium was uniformly thickened with no evidence of neoplastic proliferation. The mass was diagnosed with a calcified amorphous tumor (CAT). This is first report of CAT of the LAA.
Keywords: Calcified amorphous tumor; Cardiac tumor; Left atrial appendage.
Copyright © 2015. Published by Elsevier Inc.