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Related Concept Videos

Diseases of the Liver and Gallbladder01:26

Diseases of the Liver and Gallbladder

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...
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...
Hepatitis01:25

Hepatitis

Hepatitis is an inflammatory condition of the liver most commonly caused by hepatotropic viruses (A–E), though non-infectious causes such as alcohol and drugs also exist.Hepatitis AHepatitis A virus (HAV) is a non-enveloped RNA virus of the Picornaviridae family. It is primarily transmitted via the fecal-oral route, typically through ingestion of contaminated food or water. After ingestion, HAV enters the bloodstream through the oropharynx or intestinal epithelium and reaches the liver. The...
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...
Cholecystitis01:20

Cholecystitis

Cholecystitis is inflammation of the gallbladder, most commonly caused by obstruction of the cystic duct. This blockage prevents bile from draining, leading to gallbladder distension, inflammation, and potentially serious complications. This condition may present acutely or chronically and can happen with or without gallstones.EtiologyAbout 95% of cholecystitis cases are calculous, caused by gallstones blocking the cystic duct, leading to bile accumulation and inflammation of the gallbladder...

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Related Experiment Video

Updated: May 30, 2026

Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
07:44

Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction

Published on: March 25, 2022

Hepatobiliary tumors.

Ricardo Faingold1, Pedro A B Albuquerque, Lucia Carpineta

  • 1Department of Medical Imaging, Montreal Children's Hospital, McGill University, Montreal, Quebec, Canada. Ricardo.Faingold@muhc.mcgill.ca

Radiologic Clinics of North America
|August 3, 2011
PubMed
Summary
This summary is machine-generated.

Pediatric hepatobiliary tumors are best initially screened and followed using ultrasonography (US) due to its accessibility and lack of radiation. Advanced imaging like MRI provides comprehensive assessment of pediatric liver tumors.

Related Experiment Videos

Last Updated: May 30, 2026

Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
07:44

Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction

Published on: March 25, 2022

Area of Science:

  • Pediatric Radiology
  • Hepatobiliary Imaging
  • Oncology

Background:

  • Hepatobiliary tumors in children require accurate diagnostic imaging.
  • Early detection and characterization are crucial for effective management.
  • Current imaging modalities play a vital role in diagnosis and surveillance.

Purpose of the Study:

  • To review the current imaging status of common pediatric hepatobiliary tumors.
  • To highlight the utility of ultrasonography and magnetic resonance imaging.
  • To provide an overview for clinicians managing these conditions.

Main Methods:

  • Review of current literature and established imaging protocols.
  • Emphasis on ultrasonography (US) for initial assessment, including Doppler capabilities.
  • Discussion of magnetic resonance imaging (MRI) for detailed evaluation of liver parenchyma, gallbladder, and biliary tree.

Main Results:

  • Ultrasonography is the primary modality for screening and follow-up of pediatric hepatobiliary tumors.
  • Doppler US assesses lesion vascularity and anatomy.
  • MRI offers comprehensive, multiplanar imaging without ionizing radiation.

Conclusions:

  • Ultrasonography is a safe and effective first-line imaging tool for pediatric hepatobiliary tumors.
  • MRI complements US by providing detailed anatomical and parenchymal information.
  • Combined imaging approaches optimize the diagnosis and management of pediatric liver tumors.