Isolated periaortitis

Case contributed by Dr Erik Ranschaert


Referred by GP for microscopic hematuria and flank pain.

Patient Data

Age: 50 years
Gender: Male

Abdominal ultrasound

A thick hypoechoic rim was found around the atherosclerotic wall of the abdominal aorta. To exclude a dissection or other vascular pathology, CT angiography of the abdominal aorta was ordered and performed.


CT Abdomen and pelvis

CT Angiography in the arterial and delayed phase confirm the presence of a soft tissue rim around the abdominal aorta, which is mildly enhancing. A dissection is excluded. These findings correspond with a so-called isolated periaortitis, which is a non-aneurysmal form of an inflammatory abdominal aortic aneurysm.

Case Discussion

Chronic periaortitis (also called inflammatory abdominal aortic aneurysm) is an inflammatory condition which typically involves the infrarenal portion of the abdominal aorta. Isolated periaortitis is the non-aneurysmal form of the same entity. An exaggerated inflammatory response due to advanced atherosclerosis is thought to be the main pathogenic process. Autoimmunity has been proposed as a contributing factor.

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Case information

rID: 14536
Published: 3rd Aug 2011
Last edited: 13th Aug 2019
System: Vascular
Inclusion in quiz mode: Included

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