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The parabiliary venous system.
1Centre de Recherches de Chirurgie Digestive et Abdominale, Hôpital St. Louis, Paris, France.
Surgical and Radiologic Anatomy : SRA
|January 1, 1988
Summary
The parabiliary venous system, crucial for liver anatomy, originates from specific veins and forms a network in the liver hilum. This system develops alongside bile ducts and the hepatic artery, independent of the portal vein.
Area of Science:
- Anatomy
- Embryology
- Vascular Biology
Background:
- The parabiliary venous system is a distinct vascular network in the liver hilum.
- Its embryological development and relationship with the portal vein are not fully understood.
Purpose of the Study:
- To elucidate the anatomical course and embryological origin of the parabiliary venous system.
- To describe its vascular connections within the liver hilum and adjacent segments.
Main Methods:
- Study of 74 human specimens injected to visualize the parabiliary venous system.
- Detailed anatomical dissection and analysis of vascular networks.
Main Results:
- The parabiliary venous system arises from pancreatico-duodenal and pyloro-duodenal veins.
- It forms a hilar plexus supplying segments adjacent to the hilum, including the quadrate and caudate lobes.
- Anastomoses with cystic veins were observed in 46.50% of specimens.
- Embryologically, it develops with bile ducts and hepatic artery, after the portal vein's distribution.
Conclusions:
- The parabiliary venous system is an independent vascular structure with unique embryological origins.
- It plays a role in the vascular supply of specific liver segments near the hilum.
- Its potential clinical significance in liver surgery and disease warrants further investigation.