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Diagnostic Imaging Pathways - Persistent Stridor

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1a Click to view full size image  

Vascular Anomaly

Image 1a and 1b (Barium Swallow): There is a nasogastric tube in situ. The trachea appears normal. A constant focal narrowing of the posterior oesophagus is seen approximately at the level of the aortic arch with smooth margins (arrow), indicating extrinsic compression of the posterior surface of the oesophagus. This is most suggestive of a vascular anatomic anomaly such as an aberrant retro-oesophageal right subclavian artery causing stridor.

1b Click to view full size image  

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