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Related Concept Videos

Chronic Pancreatitis II: Collaborative Care01:29

Chronic Pancreatitis II: Collaborative Care

The management of chronic pancreatitis is multifaceted, involving a comprehensive approach that includes thorough assessment, diagnostic testing, and a variety of management strategies.
Assessment:
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...
Chronic Bowel Disorders: Introduction01:17

Chronic Bowel Disorders: Introduction

Chronic bowel diseases are a group of long-term conditions affecting the digestive tract, characterized by inflammation and damage to the gut lining. These conditions primarily include irritable bowel syndrome and inflammatory bowel disease.
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
Chronic Pancreatitis I: Introduction01:24

Chronic Pancreatitis I: Introduction

The pancreas, an elongated and flat gland situated behind the stomach, serves a vital function in digesting food and managing blood sugar levels.
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
Chronic Pancreatitis I: Introduction01:25

Chronic Pancreatitis I: Introduction

Chronic pancreatitis is a long-standing, relapsing inflammation of the pancreas, characterized by irreversible damage to the gland. It results in progressive destruction of the pancreatic parenchyma, fibrosis, and eventual loss of both exocrine and endocrine function. The disease may evolve gradually after multiple episodes of acute pancreatitis or develop independently.EtiologyChronic pancreatitis can arise from a variety of causes:Alcohol use is the leading cause, accounting for 70–80% of...
Chronic Pancreatitis II: Pathophysiology01:21

Chronic Pancreatitis II: Pathophysiology

Chronic pancreatitis is a progressive and irreversible inflammation of the pancreas, most often caused by long-term alcohol abuse, but it can also be related to ductal obstruction, smoking, or genetic factors.Chronic pancreatitis occurs when the pancreas is repeatedly exposed to harmful agents like alcohol, smoking, ductal obstruction, or genetic predisposition. These factors lead to the release of toxic metabolites and inflammatory cytokines, sustaining chronic inflammation in the pancreatic...

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Determining the time to cholangiocarcinoma in pediatric-onset PSC-IBD.

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Related Experiment Video

Updated: Jul 6, 2026

Intraoperative Strategy under Complex Vascular Adhesion for Laparoscopic Radical Resection of Bismuth-Corlette Type IIIb Perihilar Cholangiocarcinoma
05:22

Intraoperative Strategy under Complex Vascular Adhesion for Laparoscopic Radical Resection of Bismuth-Corlette Type IIIb Perihilar Cholangiocarcinoma

Published on: February 13, 2026

An update on primary sclerosing cholangitis.

James Rl Maggs1, Roger W Chapman

  • 1Department of Gastroenterology, John Radcliffe Hospital, Oxford, UK.

Current Opinion in Gastroenterology
|April 15, 2008
PubMed
Summary
This summary is machine-generated.

Primary sclerosing cholangitis (PSC) is an immune-mediated liver disease. Research explores its genetic links, pathogenesis, and treatments, with ursodeoxycholic acid being the most studied therapy.

Related Experiment Videos

Last Updated: Jul 6, 2026

Intraoperative Strategy under Complex Vascular Adhesion for Laparoscopic Radical Resection of Bismuth-Corlette Type IIIb Perihilar Cholangiocarcinoma
05:22

Intraoperative Strategy under Complex Vascular Adhesion for Laparoscopic Radical Resection of Bismuth-Corlette Type IIIb Perihilar Cholangiocarcinoma

Published on: February 13, 2026

Area of Science:

  • Hepatology
  • Immunology
  • Gastroenterology

Background:

  • Primary sclerosing cholangitis (PSC) is a chronic cholestatic liver disease.
  • It involves biliary tree strictures, potentially leading to cirrhosis and cholangiocarcinoma.
  • The exact cause of PSC is unknown, but it is considered immune-mediated.

Purpose of the Study:

  • To review current research on the etiology, genetics, pathogenesis, and epidemiology of PSC.
  • To discuss diagnostic approaches for cholangiocarcinoma in PSC patients.
  • To evaluate medical treatments for PSC.

Main Methods:

  • Review of genetic associations, including gene polymorphisms and human leucocyte antigen (HLA) haplotypes.
  • Discussion of the pathogenesis involving biliary epithelial cells and immune responses.
  • Analysis of the natural history and diagnostic imaging for PSC.
  • Evaluation of medical treatments such as ursodeoxycholic acid, tacrolimus, and silymarin.

Main Results:

  • Specific gene polymorphisms and HLA haplotypes common in inflammatory bowel disease (IBD) are not associated with PSC.
  • Biliary epithelial cells may play a role in PSC pathogenesis through immune responses to bacterial products.
  • Positron emission tomography (PET) shows potential as an adjunct imaging tool for pre-transplant cholangiocarcinoma assessment.
  • Ursodeoxycholic acid is the most studied treatment; tacrolimus and silymarin show preliminary promise.

Conclusions:

  • PSC etiology is complex, with distinct genetic associations compared to IBD.
  • Biliary epithelial cell dysfunction is implicated in PSC pathogenesis.
  • Advanced imaging like PET may aid in cholangiocarcinoma detection.
  • Further research is needed to confirm the efficacy of novel PSC treatments.