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Related Concept Videos

Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy01:30

Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy

Various diagnostic tests are employed in the diagnostic process for Inflammatory Bowel Disease (IBD), particularly to differentiate between Crohn's disease and ulcerative colitis.
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 colonic...
Inflammatory Bowel Disease II: Crohn's Disease01:30

Inflammatory Bowel Disease II: Crohn's Disease

Introduction
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 transmural...
Inflammatory Bowel Disease III: Crohn's Disease01:25

Inflammatory Bowel Disease III: Crohn's Disease

Crohn’s disease is a chronic, relapsing form of inflammatory bowel disease characterized by segmental, transmural inflammation that can affect any part of the gastrointestinal tract. Its pathogenesis arises from a combination of genetic susceptibility, environmental exposures, epithelial barrier dysfunction, and immune dysregulation. Together, these factors lead to an exaggerated immune response against components of the gut microbiome.Genetic and Environmental InfluencesMultiple genetic...
Inflammatory Bowel Disease I: Introduction01:26

Inflammatory Bowel Disease I: Introduction

Inflammatory bowel disease is a group of chronic disorders marked by recurrent inflammation of the gastrointestinal tract due to an abnormal immune response against gut microflora. This leads to tissue damage. The two main forms are Crohn’s disease and ulcerative colitis.Crohn’s DiseaseCrohn’s disease is a relapsing inflammatory disorder that can affect any part of the GI tract, from the mouth to the anus. It involves all layers of the bowel wall (transmural) and shows “skip lesions” in which...
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...
Inflammatory Bowel Disease IV: Clinical Manifestations01:20

Inflammatory Bowel Disease IV: Clinical Manifestations

Inflammatory bowel disease (IBD) encompasses two major chronic disorders—ulcerative colitis and Crohn’s disease—each characterized by relapsing episodes of gastrointestinal inflammation. Although they share certain clinical features, their patterns of involvement and manifestations differ in ways that aid diagnosis and guide management.Ulcerative ColitisUlcerative colitis is limited to the colon and rectum and involves continuous inflammation of the mucosal layer. The disease course is marked...

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Related Experiment Video

Updated: May 23, 2026

Murine Endoscopy for In Vivo Multimodal Imaging of Carcinogenesis and Assessment of Intestinal Wound Healing and Inflammation
09:42

Murine Endoscopy for In Vivo Multimodal Imaging of Carcinogenesis and Assessment of Intestinal Wound Healing and Inflammation

Published on: August 26, 2014

Chromoendoscopy in inflammatory bowel disease.

Ralf Kiesslich1, Markus F Neurath

  • 1I. Med. Klinik und Poliklinik, Johannes Gutenberg Universität Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany. kiesslich@uni-mainz.de

Gastroenterology Clinics of North America
|April 17, 2012
PubMed
Summary

Chromoendoscopy, a vital staining technique, significantly improves the detection of precancerous lesions in patients with chronic colitis. This method enhances diagnostic accuracy and guides biopsies, making it essential for colonoscopists.

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Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System
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Fluorescence-mediated Tomography for the Detection and Quantification of Macrophage-related Murine Intestinal Inflammation
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Fluorescence-mediated Tomography for the Detection and Quantification of Macrophage-related Murine Intestinal Inflammation

Published on: December 15, 2017

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Last Updated: May 23, 2026

Murine Endoscopy for In Vivo Multimodal Imaging of Carcinogenesis and Assessment of Intestinal Wound Healing and Inflammation
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Published on: August 26, 2014

Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System
15:49

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Fluorescence-mediated Tomography for the Detection and Quantification of Macrophage-related Murine Intestinal Inflammation
07:05

Fluorescence-mediated Tomography for the Detection and Quantification of Macrophage-related Murine Intestinal Inflammation

Published on: December 15, 2017

Area of Science:

  • Gastroenterology
  • Endoscopy
  • Oncology

Background:

  • Longstanding colitis increases the risk of intraepithelial neoplasia.
  • Early detection of dysplasia is crucial for patient management.
  • Standard colonoscopy may miss subtle neoplastic lesions.

Purpose of the Study:

  • To evaluate the efficacy of chromoendoscopy in detecting intraepithelial neoplasia.
  • To assess the impact of chromoendoscopy on biopsy reduction.
  • To highlight the role of chromoendoscopy in colitis surveillance.

Main Methods:

  • Chromoendoscopy using vital stains like methylene blue or indigo carmine.
  • Comparison of diagnostic yield with standard colonoscopy.
  • Integration with advanced imaging like magnifying endoscopy and confocal laser endomicroscopy (CLE).

Main Results:

  • Chromoendoscopy significantly increases the diagnostic yield for intraepithelial neoplasia.
  • The number needed to treat for pan-chromoendoscopy is 14 to identify one additional patient with dysplasia.
  • Facilitates identification of flat lesions and reduces the number of biopsies needed.

Conclusions:

  • Chromoendoscopy is an established and recommended procedure for colitis surveillance.
  • Vital staining enhances the detection of dysplasia in longstanding colitis.
  • Intravital staining should be a standard tool for colonoscopists.