PMC5775441_01
Case 1. Arteriography shows 2 large right atrial aneurysms (arrows). The catheter could not be inserted into the posterior aneurysm.
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Arteriography showed 2 aneurysms at the right atrial appendage (Figure 1).
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Intraoperative image of multiple right atrial appendage aneurysms in case 2.
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Histologic examination showed an atrophic right atrial wall that had degenerated into vacuoles or fibrous cells (Figures 2 and 3).
The right atrial wall has degenerated into vacuoles or fibrous cells. This area is considered the substrate of arrhythmia.
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Histologic examination showed an atrophic right atrial wall that had degenerated into vacuoles or fibrous cells (Figures 2 and 3).