Related Experiment Video
Updated: Jan 29, 2026

Modified Octopus Technique for Thoracoabdominal Aortic Aneurysm
Published on: August 1, 2025
Aneurysm of the Left Portal Branch
Diego Martínez1, Maria Teresa Belmonte2, Piotr Kosny3
1Radiology Department, Hospital Vega Baja, Orihuela, Alicante, Spain.
Insights
This study reports an unusual case of a portal vein aneurysm found incidentally in a patient without liver disease. Doppler ultrasound confirmed the diagnosis, highlighting the need for monitoring these rare vascular conditions.
Area of Science:
- Vascular Surgery
- Hepatology
- Diagnostic Imaging
Background:
- Aneurysms of the portal vein are uncommon vascular abnormalities.
- While often associated with liver disease like cirrhosis and portal hypertension, they can occur incidentally.
- Accurate diagnosis and understanding of their natural history are crucial.
Purpose of the Study:
- To report a case of an incidental left portal vein branch aneurysm.
- To highlight the diagnostic utility of Doppler ultrasound in such cases.
- To discuss the implications for patient management and follow-up.
Main Methods:
- Incidental finding of a left portal vein branch aneurysm during diagnostic imaging.
- Confirmation of the diagnosis using Doppler ultrasound.
Main Results:
- An aneurysm of the left branch of the portal vein was identified.
- The patient had no underlying liver pathology.
- Doppler ultrasound confirmed the diagnosis.
Conclusions:
- Portal vein aneurysms are rare and can be found incidentally.
- While often stable, they necessitate follow-up due to potential complications.
- Doppler ultrasound is effective in diagnosing these aneurysms.
Abstract:
We describe the incidental finding of an aneurysm of the left branch of the portal vein in a patient without liver pathology. The diagnosis was confirmed by Doppler ultrasound.
Learning Points:
Portal vein aneurysms are rare but have been described in patients with cirrhosis and portal hypertension.In most cases they are stable and do not progress.However, they do require follow-up in case serious complications develop.
Related Concept Videos
Hepatic Portal System
At its core, the hepatic portal vein is the result of a confluence of the superior and inferior mesenteric veins along with the splenic vein. Each of these veins has a unique role. The superior mesenteric vein is...
Aneurysm I: Introduction
Aneurysm IV: Nursing Management
Aneurysm III: Interprofessional Care
Mass Spectrometry: Branched Alkane Fragmentation
Generation of Straight or Branched Actin Filaments
Arp2/3 Complex
Arp2/3 complex is a seven-subunit complex consisting of two proteins similar to actin- Arp2 and Arp3, and five other subunits that help keep Arp2 and Arp3 inactive. When required, the complex is...

