Aortic unfolding

Aortic unfolding is an old term that was used to describe the radiological abnormality on chest X-ray that show widening of the mediastinum which might look like thoracic aortic aneurysm. With aging the length increases by approximately 12% per decade, whereas the diameter increases by just 3% per decade. This elongation causes the descending aort...
Found on http://en.wikipedia.org/wiki/Aortic_unfolding
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