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Giant Right Atrial Myxoma with Pulmonary Trunk Dislodgement Causing Intermittent Tricuspid Obliteration and Clinical Manifestations of Right Heart Failure


Chung-Lieh Hung, M.D., Division of Cardiovascular Diseases, Mackay Memorial Hospital, No. 92, Sec. 2, Zhongshan N. Rd., Zhongshan Dist., Taipei City 10449, Taiwan. Fax: +886-2-2543-3642; E-mail:


The symptoms of myxomas depend on the size, mobility, and location of the tumor. A huge myxoma obstructing the tricuspid orifice can produce symptoms of tricuspid stenosis. In this case, a giant right atrial myxoma with intermittent tricuspid obliteration, presenting with clinical manifestations of right heart failure, is described. Three-dimensional reconstruction clearly identified the occlusive extent of the tricuspid orifice. (Echocardiography 2011;28:E183-E186)