Figure legends
FIGURE 1 .Transthoracic echocardiography demonstrating cardiac blood cyst. A . The apical four-chamber view shows that a size of 19 x 19mm cyst attached to the left ventricular posterior papillary muscle and anterior mitral valve, the cyst wall is smooth with visible echogenic calcification. B. Cyst slightly blocked the left ventricular outflow tract. C and D. The apical two-chamber view shows that the cyst was attached to the papillary muscle and anterior mitral leaflet. LA=left atrium; RA=right atrium; LV=left ventricle; RV=right ventricle; APM= anterior papillary muscle; PPM=posterior papillary muscle.
FIGURE 2 . Transesophageal echocardiography and intraoperative of the blood cyst. A. A balloon-like cyst sizes of 28×29mm attached to the anterior mitral leaflet located in the left ventricle (*). B. Cyst led to the mild left ventricular outflow tract obstruction and turbulence of blood flow in systolic. C. A cyst mass (arrow) was seen in the left ventricle during operation, 40×30mm in size. The cyst attached to the anterior mitral leaflet, the base was in the posterior papillary muscle, and multiple chordae attached to the cyst. D. Surgical excises of the cyst and the wall rupture, it contained brown fluid which is old blood. LA=left atrium; RA=right atrium; LV=left ventricle; AO= aorta.