This is a case of acute coronavirus disease 2019 pneumonia that revealed an incidental large atrial myxoma with obstructive physiology that ultimately required emergent treatment with a definitive atriotomy and resection of the underlying myxoma.
Keywords: COVID-19; atrial myxoma; atriotomy; cardiothoracic surgery; sternotomy.
International College of Angiology. This article is published by Thieme.