Aortic Coarctation

Aortic coarctation is a congenital narrowing of the aorta in the area where the ductus arteriosus inserts. It can be classified into preductal, ductal, and postductal coarctation. Preductal coaractation is seen in 5% of infants with Turner syndrome. Postductal coarctation is the most common type in adults; it is associated with compensatory changes like collateral vessel development and rib notching.

Case #1. A patient with mild aortic coarctation ("pseudocoarctation"). Note dilation proximal and distal to narrowed region.