IAAA

Inflammatory abdominal aortic aneurysm

An inflammatory abdominal aortic aneurysm is a subset of abdominal aortic aneurysms characterized by thickened aneurysmal walls and dense periaortic fibrosis. Clinically, it can present with chronic abdominal or back pain, and imaging often reveals an “eggshell-like” calcification or fibrotic mantle.