Related Experiment Video
Updated: Jan 18, 2026

Modified Octopus Technique for Thoracoabdominal Aortic Aneurysm
Published on: August 1, 2025
Pressurized iliac artery aneurysm causing atypical May-Thurner syndrome
Aidan P Wiley1, Georges Jreij1, Sarah Rosenberger1
1Division of Vascular Surgery, Department of Surgery, University of Maryland, Baltimore, MD.
None:
An 84-year-old man previously treated with endovascular aneurysm repair had enlargement of a right iliac artery aneurysm sac from 3.5 to 4.3 cm over 1 year. Two years later, he presented to the clinic with a weeklong history of severe swelling in his left leg. Computed tomography scan revealed left iliac vein compression by an enlarging, 4.8-cm iliac artery aneurysm sac. Intravascular ultrasound examination confirmed near complete occlusion of the left iliac vein without thrombosis. This was treated with a 16 × 10 mm venous stent and postdilated with a 16 × 20 mm balloon. The patient reported relief of symptoms within 24 hours postoperatively.
Related Concept Videos
Aneurysm II: Clinical Manifestations and Diagnostic Studies
Aneurysm I: Introduction
Aneurysm III: Interprofessional Care
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
Peripheral Artery Disease I: Introduction
Aortic Regurgitation I: Introduction

