Figure Legends
  1. Transesophageal echocardiography is showing a hyperechoic mass lesion, measuring 2,8 ×2.6 cm, in the left atrium (A). Cardiac MRI is showing the left atrial mass extending into the pulmonary vein (B, C).
  2. The view of cardiac tumor in the left atrium after interatrial septal incision (A). The complete excision of the tumor via the right anterolateral mini-thoracotomy approach (B). Resected left atrial tumor showed a smooth white surface without any necrosis or ulceration (C).
  3. Hematoxylin & eosin stains showed a sarcomatous lesion with prominent inflammatory reaction and epithelioid neoplastic cells (orig. x400) (A). Immunohistochemical stains showed strong and diffuse cytoplasmic immunoreactivity with smooth-muscle actin (orig. x100) (B).