Ruptured Aortic Aneurysm
Enlargement of abdominal aorta > 3cm
Usually 2 to atherosclerosis
Below renals, above iliacs
About 20-25% rupture
<4cm~10%; >10 cm~60%
Retroperitoneal, usually on left
Into GI tract: massive hemorrhage
Into IVC: rapid cardiac decompensation