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thoracic constriction of esophagus


Definition: normal left-sided narrowing of the esophagus, demonstrated radiographically after a barium swallow, at the T4–T5 vertebral level, where the esophagus is impressed by the left main bronchus and the arch of the aorta.

Synonym(s): constrictio partis thoracicae esophageaTA, broncho-aortic constriction, constrictio bronchoaortica esophagea, middle esophageal constriction

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.