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Definition: normal narrowing of the esophagus, demonstrated radiographically after a barium swallow, caused by the passage of the esophagus through the esophageal hiatus of the diaphragm.
Synonym(s): constrictio phrenica esophageaTA, constrictio diaphragmatica esophagea, inferior esophageal constriction
Examples: glitazone, GI cocktail, etc.
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