Abstract
BackgroundCardiac myxoma is the most common primary cardiac tumor. Approximately 75–80% of myxomas are located in the left atrium. Occurrence of multiple myxomas is extremely rare.Case presentationWe describe a rare case of biventricular myxomas resulting in right ventricular inflow and tricuspid valve obstruction. The lesions were detected by echocardiography and thoracic computerized tomography (CT) and confirmed on positron emission tomography–computed tomography.ConclusionThe patient underwent successful surgical resection of the multiple cardiac myxomas. This kind of biventricular case has not been previously reported. The patient is asymptomatic as of the 10-month follow-up.
Highlights
BackgroundMyxoma is the most common primary cardiac benign tumor. While cardiac myxoma can occur anywhere in the heart, its etiology tends to favor a single location
Cardiac myxoma is the most common primary cardiac tumor
75–80% of myxomas are located in the left atrium, while 10–20% are located in the right atrium
Summary
Myxoma is the most common primary cardiac benign tumor. While cardiac myxoma can occur anywhere in the heart, its etiology tends to favor a single location. Transthoracic echocardiogram revealed multiple cardiac masses; a large right ventricular mass (5 cm × 4 cm) arising from the right ventricle apex was seen to prolapse through the tricuspid valve into the right atrium during systole (Fig. 1). Another small mass (1 cm × 0.8 cm) was located at the postcava near the right atrium. Multiple low density well-delineated shadows were seen (size of the largest mass: 5.5 cm × 3.8 cm; Fig. 3) Consistent with these findings, positron emission tomography (PET) revealed widened heart outline, especially that of the right ventricle. There were no signs of echocardiographic recurrence or valvular insufficiency
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