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. 2023 Sep 28;18:e57. doi: 10.15420/ecr.2023.18

Figure 2: Anatomical Relationship of the Left Atrial Appendage.

Figure 2:

The left atrial appendage (LAA), an embryonic derivative of the left atrium (LA), lies superiorly to the mitral valve apparatus (MVA) and left ventricle (LV), inferiorly to the pulmonary artery, anteriorly to the pulmonary vein. A: Schematic representation of anatomic relationship of the left atrial appendage. B: Images from transoesophageal echocardiography. Source: A: Patrick J Lynch. Reproduced under a Creative Commons CC BY-SA 3.0 license.