Transesophageal echocardiographic diagnosis of multicentric left ventricular myxomas mimicking a left atrial tumor.
We report a case of multicentric left ventricular myxomas with prolapse of one myxoma into the left atrium during ventricular systole that mimicked a left atrial tumor. The transthoracic echocardiogram showed large masses in the region of the mitral valve leaflets consistent with vegetations or tumors. A computed tomographic scan of the chest demonstrated two distinct left atrial masses, one of which appeared to prolapse from the left atrium into the left ventricle. Intraoperative transesophageal echocardiography showed a large pedunculated mass moving between the two left-sided cardiac chambers with intermittent trapping of the mass in the left atrium. The mass was attached to the left ventricular posteromedial papillary muscle by a long stalk. Another adjacent large ventricular mass was also noted in the left ventricle. These findings were confirmed at operation, which also demonstrated a third small tumor arising from the atrial aspect of the posterior mitral leaflet.
Samdarshi
T E
TE
Division of Cardiovascular Disease, University of Alabama, Birmingham 35294.
Mahan
E F
EF
Nanda
N C
NC
Guthrie
F W
FW
Bernstein
I J
IJ
Kirklin
J W
JW
D000328:Adult; D003937:Diagnosis, Differential; D004452:Echocardiography / Q000379:methods; D004947:Esophagus; D006325:Heart Atria / Q000000981:diagnostic imaging; D006338:Heart Neoplasms / Q000000981:diagnostic imaging*; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D009232:Myxoma / Q000000981:diagnostic imaging*; D009378:Neoplasms, Multiple Primary / Q000000981:diagnostic imaging*