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Related Concept Videos

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 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...
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 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...
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Glucocorticoids, a class of anti-inflammatory drugs, are pivotal in treating moderate to severe Crohn's disease by inducing remission. They exhibit their anti-inflammatory action by inhibiting the production of inflammatory cytokines such as tumor necrosis factor (TNF)-α, interleukin (IL)-1, and chemokines like IL-8. In addition, they reduce the expression of inflammatory cell adhesion molecules and inhibit gene transcription of nitric oxide synthase, phospholipase A2, cyclooxygenase-2 (COX-2),...
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Inflammatory Bowel Disease II: Ulcerative Colitis

Ulcerative colitis is a chronic inflammatory disorder of the colon characterized by continuous mucosal inflammation that typically begins in the rectum and extends proximally in a uniform pattern. Its pathogenesis involves a complex interplay of genetic predisposition, immune dysregulation, and environmental influences. These factors converge to impair the colon’s epithelial defenses and promote an exaggerated inflammatory response against luminal contents.Breakdown of the Mucosal BarrierA...

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Related Experiment Video

Updated: May 8, 2026

Fecal Microbiota Transplantation via Colonoscopy for Recurrent C. difficile Infection
07:06

Fecal Microbiota Transplantation via Colonoscopy for Recurrent C. difficile Infection

Published on: December 8, 2014

[Ileocaecal actinomycosis - a case report].

K Sutoris1, M Mráček, Z Rohan

  • 1Chirugická klinika 1. LF UK a TN Praha. sutoris@gmail.com

Rozhledy V Chirurgii : Mesicnik Ceskoslovenske Chirurgicke Spolecnosti
|September 6, 2013
PubMed
Summary

Abdominal actinomycosis is a rare cause of acute abdomen in immunocompetent individuals. This case highlights its potential to mimic appendicitis and caecal tumors, emphasizing the need for consideration in differential diagnoses.

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Last Updated: May 8, 2026

Fecal Microbiota Transplantation via Colonoscopy for Recurrent C. difficile Infection
07:06

Fecal Microbiota Transplantation via Colonoscopy for Recurrent C. difficile Infection

Published on: December 8, 2014

Area of Science:

  • Gastroenterology
  • Infectious Diseases
  • Surgical Pathology

Background:

  • Abdominal actinomycosis is infrequently diagnosed in immunocompetent patients.
  • Acute abdomen presentation often necessitates prompt surgical intervention, making accurate etiological diagnosis critical.

Observation:

  • A young patient presented with symptoms mimicking acute appendicitis and a caecal tumor.
  • The patient exhibited right hypogastrium pain, tenderness, and signs of peritonism.

Findings:

  • The case involved specific colitis as the underlying condition.
  • Abdominal actinomycosis was identified as the etiological cause, presenting atypically.

Implications:

  • Clinicians should consider abdominal actinomycosis in the differential diagnosis of acute abdomen, even in immunocompetent patients.
  • Globalization may increase the exposure to etiological agents, necessitating broader diagnostic considerations.