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Updated: Apr 6, 2026
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New Thrombectomy Technique for Total Portal Vein Thrombosis in Liver Transplantation
Published on: June 27, 2025
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Portal vein aneurysm: What to know
Andrea Laurenzi1, Giuseppe Maria Ettorre1, Raffaella Lionetti2
1Division of General Surgery and Liver Transplantation, S. Camillo-Forlanini Hospital, Rome, Italy.
Summary
Portal vein aneurysms are rare vascular dilatations. Management depends on liver status, with surgery reserved for complications or symptomatic cases in specialized centers.
Area of Science:
- Vascular Surgery
- Hepatology
- Gastroenterology
Background:
- Portal vein aneurysm (PVA) is a rare vascular dilatation, with fewer than 200 cases reported since 1956.
- PVAs can be congenital or acquired, with portal hypertension being a primary cause of acquired cases.
Purpose of the Study:
- To provide an overview of the international literature on portal vein aneurysms.
- To clarify aspects of this rare nosological entity and summarize clinical and surgical management.
Main Methods:
- A systematic literature search of the Pubmed database was conducted.
- Articles published from 1956 to 2014 were reviewed, totaling 96 reports and 190 patients.
Main Results:
- Portal vein aneurysm is defined by specific diameter thresholds (≥1.9 cm in cirrhotic, ≥1.5 cm in normal livers).
- Surgical intervention is indicated for rupture, thrombosis, or symptomatic aneurysms.
- Treatment varies: aneurysmectomy/aneurysmorrhaphy for normal livers; shunt procedures/liver transplantation for portal hypertension.
Conclusions:
- Management of portal vein aneurysms requires specialized expertise.
- Cases should be handled in high-volume tertiary hepato-biliary centers due to rarity and complexity.
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