Locations
A pseudoaneurysm can form in communication with pretty much any artery in the body. With the high volume of cardiac catheterizations performed today, femoral artery pseudoaneurysms, in addition to pseudoaneurysms of arteriovenous fistulas used for hemodialysis, are the most common. Pseudoaneurysms can form in the legs days, months, or even years after blunt or penetrating trauma.
Although aneurysms and left ventricular aneurysms may involve any wall segment, aneurysms in the posterolateral wall are frequently due to pseudoaneurysms. In contrast, the most common location for a true left ventricular aneurysm involves the apex of the heart.
Outside of the heart, pseudoaneurysms associated with pancreatitis can occur in several of the abdominal vessels, including the superior mesenteric artery, pancreaticoduodenal artery, and others.
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