Lipomatous Hypertrophy of the Intraatrial Septum Resulting in Right Atrial Inflow Obstruction and Atrial Flutter Jennifer A. Dickerson, MD, Macy Smith,

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Lipomatous Hypertrophy of the Intraatrial Septum Resulting in Right Atrial Inflow Obstruction and Atrial Flutter Jennifer A. Dickerson, MD, Macy Smith, MD, Steven Kalbfleisch, MD, Michael S. Firstenberg, MD The Annals of Thoracic Surgery Volume 89, Issue 5, Pages 1647-1649 (May 2010) DOI: 10.1016/j.athoracsur.2009.10.001 Copyright © 2010 The Society of Thoracic Surgeons Terms and Conditions

Fig 1 Transesophageal echocardiography at the level of the aortic valve (AoV) reveals the posterior and superior extension of the tumor. (LA = left atrium; RA = right atrium.) The Annals of Thoracic Surgery 2010 89, 1647-1649DOI: (10.1016/j.athoracsur.2009.10.001) Copyright © 2010 The Society of Thoracic Surgeons Terms and Conditions

Fig 2 (A) Oblique sagittal view cardiac magnetic resonance imaging (MRI) using dark blood imaging demonstrates the posterior and superior extensions of the tumor compromising the opening of the superior vena cava (SVC)-right atrial (RA) junction. (B) Horizontal long-axis cardiac MRI dark blood with fat-suppressed imaging confirms the histopathologic diagnosis of a lipoma. (RA = right atrium; SVC = superior vena cava.) The Annals of Thoracic Surgery 2010 89, 1647-1649DOI: (10.1016/j.athoracsur.2009.10.001) Copyright © 2010 The Society of Thoracic Surgeons Terms and Conditions