Dysphagia lusoria
Diagnosis certain
Updates to Case Attributes
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a middle age female with dysphagia, OGD show external compression at mid esophagus.
During development of aortic arch, if the proximal portion of the right fourth arch disappears instead of distal portion, the right subclavian artery will arise as the last branch of aortic arch. It then courses behind the esophagus (or rarely in front of esophagus, or even in front of trachea) to supply blood to right arm. This causes pressure on esophagus and results in dysphagia. It can sometimes result in upper gastrointestinal tract bleeding
-<p>a middle age female with dysphagia, OGD show external compression at mid esophagus.</p>- +<p>a middle age female with dysphagia, OGD show external compression at mid esophagus.</p><p>During development of <a href="https://en.wikipedia.org/wiki/Aortic_arch">aortic arch</a>, if the proximal portion of the right fourth arch disappears instead of distal portion, the right subclavian artery will arise as the last branch of aortic arch. It then courses behind the <a href="https://en.wikipedia.org/wiki/Esophagus">esophagus</a> (or rarely in front of esophagus, or even in front of <a href="https://en.wikipedia.org/wiki/Vertebrate_trachea">trachea</a>) to supply blood to right arm. This causes pressure on esophagus and results in <a href="https://en.wikipedia.org/wiki/Dysphagia">dysphagia</a>. It can sometimes result in upper gastrointestinal tract bleeding</p>
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