Abdominal Aortic Aneurysm

Abdominal Aortic Aneurysm •Typical example of an AAA located in the lower aorta, below the renal arteries down to the bifurcation. •Upper view shows configuration of intact aorta. •Lower view shows a severe degree of atherosclerosis involving the entire aorta as well as the aneurysm. Note that no smooth endothelial surface is visible, with confluent destruction by a thick layer of coarsely granular soft, oily, atheromatous matter. •Lumen through aneurysm and ostia of major branches obscured (sometimes occluded) by atheromas. (Description By:J. Hasson, M.D. ) (Image Contrib. by: UCHC )