Aortic unfolding
radiologic sign

Aortic unfolding is an abnormality visible on a chest X-ray, that shows widening of the mediastinum which may mimic the appearance of a thoracic aortic aneurysm.
With aging, the ascending portion of the thoracic aorta increases in length by approximately 12% per decade, whereas the diameter increases by just 3% per decade. This elongation causes the ascending aorta to appear as a vertical shadow on the left heart border. Unfolding is often associated with aortic calcification which implies aortic degeneration and hypertension.
“Aortic unfolding” enters the record as radiologic sign. Crown Archives preserves that source wording while asking what Aortic, unfolding and radiologic can confirm, complicate or overturn.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated May 25, 2025. The linked authority identifier is Q4778762. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Aortic unfolding” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.