Direct communication between the parabiliary and paraumbilical venous network: a case report

Area of Science:

• Vascular anatomy
• Medical imaging
• Hepatology

Background:

• Portal vein embolization (PVE) is a procedure used to induce hypertrophy of the future liver remnant.
• Understanding venous anatomy is crucial for liver surgery and managing portal hypertension.
• Collateral pathways can develop due to altered hemodynamics.

Observation:

• A direct communication between the parabiliary vein and the paraumbilical vein was identified on computed tomography (CT).
• This observation was made in a patient following portal vein embolization.
• The communication represents a rare anatomical variant.

Findings:

• The study highlights a previously undocumented direct venous connection.
• This connection provides a potential collateral pathway for blood flow.
• The significance of this finding is related to altered hepatic circulation.

Implications:

• This rare venous communication may influence surgical planning and management of liver disease.
• Awareness of this pathway is important for interpreting imaging studies in patients with liver conditions.
• Further research may explore the functional role and clinical relevance of this specific collateral pathway.