PMC9880347_01
Comparison of echocardiographic images. (A) No abnormal mass in LA 10 months ago. (B) LA mass suggestive of myxoma.. LA: left atrial.
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F1
TTE revealed a mobile, echogenic mass in LA which caused severe mitral stenosis (Figures 1, 2A and B, Movies 2 and 3). Transesophageal echocardiography showed a 6.0 x 4.4 cm-sized, multi-lobulated mass attached at LA (Figure 2C, Movies 4 and 5).
Transthoracic echocardiography demonstrated a mobile, echogenic mass in LA (A) causing severe mitral stenosis (B). Transesophageal echocardiography image of mid-esophageal 180  view showed 6.0 x 4.4 cm-sized, multi-lobulated mass attached at LA (C). Computed tomography angiography image revealed a large mass in LA (D).. LA: left atrial.
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F2
TTE revealed a mobile, echogenic mass in LA which caused severe mitral stenosis (Figures 1, 2A and B, Movies 2 and 3). Transesophageal echocardiography showed a 6.0 x 4.4 cm-sized, multi-lobulated mass attached at LA (Figure 2C, Movies 4 and 5). Computed tomography (CT) revealed a large, low attenuated filling defect with a volume of 46.8 cm3 in LA (Figure 2D).
Pathologically confirmed myxoma. Histology showed multi-lobulated structures with myxoid stroma (hematoxylin and eosin staining).
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F3
TTE revealed a mobile, echogenic mass in LA which caused severe mitral stenosis (Figures 1, 2A and B, Movies 2 and 3). Transesophageal echocardiography showed a 6.0 x 4.4 cm-sized, multi-lobulated mass attached at LA (Figure 2C, Movies 4 and 5). Excised mass was confirmed as myxoma pathologically (Figure 3).