I apologise.  I believe that I miss understood (or was totally making something up) when talking about why Abdominal Aortic Aneurysms occur most frequently below the renal arteries.  First, it wasn't Dr. Rhodes who told me that...I can't find where I heard that--I guess I made it up.  Second, I have been able to find anomalies where individuals have weak points there because of lack of adequate collagen fibers.  The most common reason is from the build up of plaque.  The most common sites for plaque build up is at bifurcation points.  The bifurcation causes turbulence that allows for the build up.  So, I'm sorry that I said anything before I had something to back up my thinking.

Justin 

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AAA Jason Roos (IP:24.116.72.xxx) 2007-01-07 20:41:29 "The abdominal aorta, immediately distal to the branching of the renal arteries is the most common site of aneurysm formation." Diaphragm and Posterior Abdominal Wall, 1/4/07, page 5, III. D. Aortic Aneurysm, Dr. D. Rhodes last lecture Jason

erikpaul (Manager) 2007-01-08 02:01:15 very nice...

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