case_images: PMC11140025_01
case_images: The larger mass close to the mitral valve.
case_images: fcvm-11-1378655-g001.jpg
case_images: PMC11140025_01_fcvm-11-1378655-g001.jpg
case_images: F1
case_images: After a few cardiac cycles, the mass was substantially enhanced, almost matching the surrounding myocardium, confirming the likelihood of a malignant tumor (Figure 1, Supplementary Video 1).
case_images: Primary myxofibrosarcoma of the left atrium.
case_images: fcvm-11-1378655-g002.jpg
case_images: PMC11140025_01_fcvm-11-1378655-g002.jpg
case_images: F2
case_images: This diagnosis was substantiated through immunohistochemistry and microscopic morphology examination (Figures 2, 3). However, the enhancement degree was lower than that of the adjacent myocardium, leading to the diagnosis of tumor recurrence. (Figure 4, Supplementary Video 2).
case_images: Smooth muscle actin positive.
case_images: fcvm-11-1378655-g003.jpg
case_images: PMC11140025_01_fcvm-11-1378655-g003.jpg
case_images: F3
case_images: This diagnosis was substantiated through immunohistochemistry and microscopic morphology examination (Figures 2, 3).
case_images: Recurrent tumor in the left atrium.
case_images: fcvm-11-1378655-g004.jpg
case_images: PMC11140025_01_fcvm-11-1378655-g004.jpg
case_images: F4
case_images: However, the enhancement degree was lower than that of the adjacent myocardium, leading to the diagnosis of tumor recurrence. (Figure 4, Supplementary Video 2).