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Related Concept Videos

Hepatic Portal System01:21

Hepatic Portal System

The hepatic portal system, a critical part of our circulatory framework, transports nutrient-laden, deoxygenated blood from the gastrointestinal tract and spleen to the liver. This ingenious system plays an indispensable role in maintaining our body's metabolic equilibrium.
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 responsible...
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Fetal circulation is a unique system that facilitates the exchange of gases, nutrients, and waste products between the developing fetus and the mother. This intricate process takes place through a special organ called the placenta.
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Diseases of the Liver and Gallbladder01:26

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Liver and gallbladder diseases are a significant health concern, with prominent conditions including cirrhosis, hepatitis, non-alcoholic fatty liver disease (NAFLD), and gallstones. Jaundice is a common manifestation of liver and biliary disease.
Cirrhosis is characterized by the scarring of hepatic lobules in the liver, which are replaced by fibrous tissue, affecting the liver's normal functioning. NAFLD, on the other hand, is caused by an excessive build-up of fat in the liver, not related to...
Cirrhosis II: Pathophysiology01:24

Cirrhosis II: Pathophysiology

Cirrhosis is a progressive chronic liver injury caused by prolonged inflammation, excessive fibrotic remodeling, and impaired regeneration. Over time, repeated hepatic insults disrupt the liver’s architecture and function, leading to reduced blood flow, impaired bile drainage, and diminished metabolic capacity.Pathophysiology of cirrhosisCirrhosis arises from three main responses to chronic liver damage: inflammation, immune activation, and hepatocyte death. These processes lead to structural...
Portal Hypertension01:22

Portal Hypertension

Portal hypertension is an increase in blood pressure within the portal venous system. Normally, this pressure is less than 5 mmHg. It is considered clinically significant when it rises above 10 mmHg. At this threshold, complications from altered blood flow and venous congestion emerge.EtiologyPortal hypertension arises from conditions that impede blood flow through the liver. The most common cause is cirrhosis, in which chronic liver injury leads to fibrotic scarring. This fibrosis narrows or...
Hepatic Encephalopathy01:29

Hepatic Encephalopathy

DefinitionHepatic encephalopathy is a reversible neurologic syndrome that results from advanced liver dysfunction or portosystemic shunting. It leads to disturbances in cognition, behavior, and motor function due to the brain’s exposure to gut-derived toxins that the liver fails to detoxify.EtiologyThis condition develops either in the setting of acute fulminant hepatitis or progressively during chronic liver disease, such as cirrhosis and portal hypertension. Portosystemic shunting—including...

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Updated: Jun 30, 2026

Heterotopic Auxiliary Rat Liver Transplantation With Flow-regulated Portal Vein Arterialization in Acute Hepatic Failure
16:19

Heterotopic Auxiliary Rat Liver Transplantation With Flow-regulated Portal Vein Arterialization in Acute Hepatic Failure

Published on: September 13, 2014

Congenital intrahepatic porto-systemic shunt.

B Serrien1, H Rigauts, G Marchal

  • 1Department of Radiology, University Hospitals KU Leuven, Belgium.

Journal Belge De Radiologie
|December 1, 1992
PubMed
Summary
This summary is machine-generated.

A rare intrahepatic shunt between the portal vein and hepatic vein was found in an asymptomatic patient. This congenital vascular malformation was identified using ultrasound, CT, and angiography.

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Area of Science:

  • Vascular Surgery
  • Diagnostic Imaging
  • Hepatology

Background:

  • Porto-hepatic venous shunting is a rare vascular anomaly.
  • Previous cases have been associated with liver cirrhosis.
  • Congenital causes are seldom reported.

Observation:

  • An asymptomatic patient presented with an unusual intrahepatic shunt.
  • Diagnostic imaging revealed a direct communication between a portal vein and a hepatic vein.
  • The shunt involved a dilated portal vein segment.

Findings:

  • Ultrasound with Doppler, computed tomography, and angiography confirmed the intrahepatic porto-hepatic venous shunt.
  • No evidence of cirrhosis or trauma was detected in the patient.
  • The vascular malformation was consistent with a congenital anomaly.

Implications:

  • This case expands the understanding of porto-hepatic venous shunting etiologies.
  • Highlights the importance of considering congenital anomalies in vascular malformations.
  • Suggests a need for advanced imaging in diagnosing rare vascular conditions.