Related Experiment Video
Updated: Dec 8, 2025

Adult Mouse Venous Hypertension Model: Common Carotid Artery to External Jugular Vein Anastomosis.
Published on: January 27, 2015
"Switching off the light bulb" - venoplasty to relieve SVC obstruction
Oi Yean Wong1, Carla Papagiorcopulo2, Anthie Papadopoulou1
1Department of Radiology, Royal Free Hospital, Royal Free London NHS Foundation Trust, Pond Street, Hampstead, London, NW3 2QG, United Kingdom.
Abstract:
In superior vena cava obstruction, one of the signs on computed tomography is an arterially enhancing pseudolesion in segment IV adjacent to the falciform ligament due to collateral flow via the veins of Sappey, sometimes termed the "lightbulb sign." We describe a case where venoplasty was performed to restore flow in superior vena cava with disappearance of the pseudolesion on subsequent computed tomography, thus "switching off the lightbulb."
More Related Videos
08:05Occlusion of the Great and Small Saphenous Vein Using Copolymeric Glue Based on N-Butyl Cyanoacrylate and Methacryloxy Sulfolane
Published on: December 9, 2022
05:44Author Spotlight: Utilizing Venoplasty Balloon Model in Rodents to Simulate Surgical Interventions for Deep Veins
Published on: May 24, 2024
Related Concept Videos
Varicose Veins II: Diagnostic Studies and Interprofessional Care
Mitral Stenosis III: Medical Management