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What are the three strictures of the esophagus called?
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There are three strictures in the esophagus, namely the first stricture, the second stricture and the third stricture.
1. The first stricture
is at the beginning of the esophagus, i.e. at the junction of the pharynx and esophagus, flush with the lower edge of the 6th cervical vertebral body, about 15cm away from the central incisor, which is easy to cause food incarceration.
2. The second
stricture is at the intersection of the left main bronchus and the esophagus, equivalent to the level between the 4th and 5th thoracic vertebrae, about 25cm away from the central incisor. The stricture here is a good site for esophageal cancer.
3. The third
stricture is at the esophageal hiatus where the esophagus passes through the diaphragm, usually flush with the 10th thoracic vertebra, about 40cm away from the central incisor.
