[Klippel-Trenaunay-Weber syndrome].

Area of Science:

• Vascular Medicine
• Genetics
• Pediatric Cardiology

Background:

• Klippel-Trenaunay syndrome is a congenital disorder primarily affecting the venous system.
• Vascular anomalies in Klippel-Trenaunay syndrome typically involve venous malformations.
• Arterial pathologies are exceptionally rare in this condition.

Observation:

• A 7-year-old boy presented with Klippel-Trenaunay-(Weber) syndrome.
• The patient exhibited unusual arterial complications.
• Iliac and femoral artery aneurysms and stenosis were identified in the lower limb.

Findings:

• This report details a rare presentation of arterial stenosis and aneurysms in Klippel-Trenaunay-(Weber) syndrome.
• The arterial involvement occurred at multiple levels within the lower limb's vasculature.
• The coexistence of venous and arterial anomalies underscores the syndrome's complex vascular manifestations.

Implications:

• Highlights the potential for rare arterial complications in Klippel-Trenaunay syndrome.
• Suggests the need for comprehensive vascular assessment in affected children.
• Contributes to understanding the spectrum of vascular anomalies in genetic syndromes.