A 62-year-old man with a history of mitral valve replacement 25 years prior, presented with dyspnea on exertion. Transthoracic echocardiography and cardiac computed tomography (CT) revealed a 7.0 cm right atrial mass. Surgical resection revealed the mass was adherent to the free wall of the right atrium.
Joseph Maleszewski, M.D.
Consultant, Division of Anatomic Pathology
Associate Professor of Laboratory Medicine and Pathology and Associate Professor of Medicine,
Mayo Clinic College of Medicine
Melanie Bois, M.D.
Resident, Division of Anatomic & Clinical Pathology