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contentuptodate· Content· item f15_16_15620
©2013 UpToDate ® Print Email Anatomy of the esophagus The esophagus has three anatomical points of narrowing that are prone to perforation. These sites include the cricopharyngeus muscle, the broncho-aortic constriction, and the esophagogastric junction. The esophagogastric junction is the most common site of perforation.