Left atrial appendage aneurysm: A case report

Figure 1 Magnetic resonance imaging. A white arrow shows a sharply dilated cavity of the left atrial appendage.

Figure 2 Aneurysmectomy. A: The aneurysm of the left atrial appendage is opened; B: The aneurysm of the left atrial appendage is excised and sutured from the inside.

Figure 3 Hematoxylin and eosin staining of the resected left atrial appendage aneurysm. A: The wall of the aneurysm is thin, with slight fibrosis of the endo- and epicardium (scale bar 100 µm, 100 × magnification); B: Hypertrophied cardiomyocytes with dystrophic changes and vacuolated cytoplasm (scale bar 100 µm, 400 × magnification).