Abstract
A 51-YEAR-OLD WOMAN presented with a 6-month history of dizziness and palpitations both at rest and with activity. These symptoms worsened in the supine position, which necessitated sleeping on an incline. She also complained of progressively worsening dyspnea on exertion. She reported a diminished appetite over the last few months but no significant weight loss. She also experienced intermittent episodes of nausea and vomiting. Transesophageal echocardiography was performed as part of the diagnostic evaluation (Fig 1, Fig 2, Fig 3 and Videos 1-3 [supplementary videos are available online]). What is the diagnosis? Fig 2A midesophageal 2-chamber transesophageal echocardiographic image showing a large left atrial mass. View Large Image Figure Viewer Download Hi-res image Fig 3A midesophageal aortic valve long-axis transesophageal echocardiographic image showing a large left atrial mass. View Large Image Figure Viewer Download Hi-res image
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