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  Indian J Med Microbiol
 

Figure 5: Sagittal cut through the left atrium and ventricle shows the descent of the esophagus behind the posterior wall of the left atrium. The left lateral ridge, separating the orifices of the left pulmonary veins (LI and LS) from the left atrial appendage, is broad (a). In contrast to (a), this specimen shows a narrow LLR, which is an infolding of the atrial wall. The remnant of the vein of Marshall (circle) lies on the epicardial side of this fold. The red broken line marks the left atrial isthmus with the course of the coronary sinus passing over the epicardial aspect (b). Cx: circumflex artery, GCV: great cardiac vein, LAA: left atrial appendage

Figure 5: Sagittal cut through the left atrium and ventricle shows the descent of the esophagus behind the posterior wall of the left atrium. The left lateral ridge, separating the orifices of the left pulmonary veins (LI and LS) from the left atrial appendage, is broad (a). In contrast to (a), this specimen shows a narrow LLR, which is an infolding of the atrial wall. The remnant of the vein of Marshall (circle) lies on the epicardial side of this fold. The red broken line marks the left atrial isthmus with the course of the coronary sinus passing over the epicardial aspect (b). Cx: circumflex artery, GCV: great cardiac vein, LAA: left atrial appendage