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Figure Legend
Fig1 A,B,C
A,B A transesophageal echocardiography image of an ovoid mass 15 mm in
diameter (arrows) at the anterior aspect of the right superior pulmonary
vein antrum is shown.
C Contrast-enhanced computed tomography of location of the mass (red
arrow) revealed that it occurred at the previous ablation site.
Fig2 A,B
A A red, soft mass was observed at the cranial aspect of the right upper
pulmonary vein orifice, as seen in the preopereative examination.
B The mass had adhered to the previous ablation site and was easily
removed. Its size was 15 × 12 mm.
Fig3
Hematoxylin Eosin statin of specimen from surgery is shown. Scale bar is
shown right above in the picture.
Layers of organized thrombus were formed on endocardium and fibrin
thrombi were above them. Part of endocardium was replaced with necrotic
tissue and structure of muscle layer was collapsed. Epicardium consists
loose collagen fibers with inflammatory cells and neocapillaries are
formed.