External iliac artery fibrodysplasia

Area of Science:

• Vascular Medicine
• Radiology
• Genetics

Background:

• Fibrodysplasia, a condition affecting artery walls, can manifest in the external iliac arteries.
• This arteriopathy is often part of a more generalized vascular disease, sometimes coexisting with atherosclerosis.
• The characteristic "string-of-beads" or corrugated appearance on angiography is typical.

Purpose of the Study:

• To review the clinical and arteriographic features of external iliac artery fibrodysplasia.
• To highlight the association of external iliac artery fibrodysplasia with generalized arterial fibrodysplasia.
• To describe rare presentations of aneurysmal dilatation in affected arteries.

Main Methods:

• Retrospective review of clinical data from 12 patients.
• Analysis of arteriographic findings in patients with external iliac artery fibrodysplasia.
• Correlation of imaging findings with clinical symptoms and patient history.

Main Results:

• External iliac artery fibrodysplasia was observed in 12 patients, frequently associated with fibrodysplasia elsewhere.
• The classic "string-of-beads" angiographic pattern was seen in most patients.
• Two patients presented with previously unreported aneurysmal dilatation of the aorta and iliac arteries.

Conclusions:

• External iliac artery fibrodysplasia is a manifestation of a systemic arteriopathy.
• The condition can lead to significant symptoms due to luminal compromise, thrombosis, or embolization.
• Aneurysmal changes represent a rare but notable complication of diffuse arterial fibrodysplasia.