Popliteal artery aneurysm in patient with Klippel--Trénaunay--Weber syndrome.

Background: The association of Klippel-Trénaunay-Weber syndrome (KTWS) with artery aneurysms is very rare.

Methods And Results: A 61-year-old man, diagnosed with left lower limb KTWS, presented with a venous ulcer and a popliteal aneurysm measuring 3.5 cm in diameter in the same limb. Endovascular treatment with covered stent was applied with good morphological and clinical results.

Conclusion: We report a singular case of the association of a popliteal aneurysm with KTWS and its endovascular treatment. This treatment enabled exclusion of the popliteal artery aneurysm with safety and effectiveness and reduced the number of arteriovenous fistulas.