Inflammatory bowel disease and primary sclerosing cholangitis: One disease or two?
Related Experiment Video
Updated: Jul 11, 2025
Chronic Salmonella Infection Induced Intestinal Fibrosis
Published on: September 22, 2019
Kim N van Munster1, Annika Bergquist2, Cyriel Y Ponsioen1
1Department of Gastroenterology and Hepatology, Amsterdam UMC, University of Amsterdam, the Netherlands.
Insights
Primary sclerosing cholangitis (PSC) and inflammatory bowel disease (IBD) share a strong connection, yet their exact relationship and underlying causes remain unclear. This review explores the epidemiology, phenotype, and potential mechanisms linking these two complex conditions.
Area of Science:
- Hepatology and Gastroenterology
- Autoimmune and Inflammatory Diseases
Background:
- Primary sclerosing cholangitis (PSC) remains a significant unmet need in liver disease management.
- PSC frequently co-occurs with inflammatory bowel disease (IBD), particularly extensive colitis.
- The pathophysiology connecting PSC and IBD is not fully understood.
Purpose of the Study:
- To review the epidemiology and specific clinical phenotype of IBD in PSC patients.
- To explore potential pathophysiological mechanisms linking PSC and IBD.
- To discuss the implications for managing patients with both PSC and IBD.
Main Methods:
- Comprehensive literature review of studies investigating the association between PSC and IBD.
- Analysis of epidemiological data, clinical features, and proposed pathophysiological links.
- Discussion of current understanding and future research directions.
Main Results:
- A high prevalence of IBD is observed in PSC patients, often presenting as extensive colitis.
- The exact nature of the PSC-IBD relationship is debated: a shared susceptibility or PSC as an IBD manifestation.
- Understanding the connection is crucial for effective management strategies.
Conclusions:
- The co-occurrence of PSC and IBD highlights a complex interplay between liver and gut inflammation.
- Further research is needed to elucidate the shared etiological factors and guide therapeutic interventions.
- Distinguishing whether PSC and IBD are one or two diseases is critical for patient care.
Abstract:
Primary sclerosing cholangitis (PSC) was declared one of the biggest unmet needs in hepatology during International Liver Congress 2016 in Berlin. Since then, not much has changed unfortunately, largely due to the still elusive pathophysiology of the disease. One of the most striking features of PSC is its association with inflammatory bowel disease (IBD), with the majority of patients with PSC being diagnosed with extensive colitis. This review describes the epidemiology of IBD in PSC, its specific phenotype, complications and potential pathophysiological mechanisms connecting the two diseases. Whether PSC is merely an extra-intestinal manifestation of IBD or if PSC and IBD are two distinct diseases that happen to share a common susceptibility that leads to a dual phenotype is debated. Implications for the management of the two diseases together are also discussed. Overall, this review summarises the available data in PSC-IBD and discusses whether PSC and IBD are one or two disease(s).
More Related Videos
10:21Author Spotlight: Exploring the Role of Inflammation in the Co-occurrence of Primary Sjogren's Syndrome and Lung Adenocarcinoma
Published on: September 20, 2024
08:56Bile Duct Ligation in Mice: Induction of Inflammatory Liver Injury and Fibrosis by Obstructive Cholestasis
Published on: February 10, 2015
Related Concept Videos
01:17Chronic Bowel Disorders: Introduction
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...
01:27Inflammatory Bowel Disease I: Ulcerative Colitis
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
01:30Inflammatory Bowel Disease II: Crohn's Disease
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by...
01:24Chronic Pancreatitis I: Introduction
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...
01:30Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
01:21Inflammatory Bowel Disease V: Surgical Management
Here are some common surgical interventions for IBD: