What are the histologic findings in coarctation of the aorta (CoA)?

Updated: Nov 20, 2018
  • Author: Syamasundar Rao Patnana, MD; Chief Editor: Stuart Berger, MD  more...
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Coarctation of the aorta results from marked ridgelike thickening of the media of the aortic wall opposite the insertion of the patent ductus arteriosus or ligamentum arteriosum.

The intima in this area may be thin initially but may thicken over time.

This ridge or shelf becomes an obstruction when the patent ductus involutes and when ductal tissue in the wall of the aorta involutes.

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