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Related Concept Videos

Appendicitis01:19

Appendicitis

Appendicitis is an acute inflammatory condition of the vermiform appendix, most commonly caused by obstruction of its lumen. The appendix is a narrow, blind-ended pouch that extends from the cecum, making it particularly prone to obstruction. Causes include fecaliths, lymphoid hyperplasia (often after viral infections), parasites, tumors, or foreign bodies. This obstruction initiates a cascade of pathological changes.Luminal Obstruction and Early InflammationAfter obstruction, normal mucosal...
Appendicitis-I: Introduction01:22

Appendicitis-I: Introduction

The appendix, a small, narrow, blind tube extending from the inferior part of the cecum, is widely regarded as a vestigial organ, having lost much of its original function through evolution. Despite its diminished role, the appendix can become inflamed, a condition known as appendicitis.
Etiology: Appendicitis can arise from various causes, primarily rooted in the obstruction of the appendix lumen. Factors contributing to this obstruction include fecal accumulation, lymphoid hyperplasia and, in...
Appendicitis-II: Diagnostic Studies and Management01:29

Appendicitis-II: Diagnostic Studies and Management

Diagnosing and managing appendicitis requires a structured and comprehensive approach that spans from initial assessment to postoperative care. Here is an overview of the process:
Diagnosing Appendicitis
It requires a multifaceted approach, starting with a detailed physical examination to pinpoint the location and nature of the pain and identify any associated symptoms. Laboratory tests play a crucial role. A complete Blood Count (CBC) typically reveals leukocytosis (an increased number of...
Inflammatory Bowel Disease V: Surgical Management01:21

Inflammatory Bowel Disease V: Surgical Management

Surgical interventions for inflammatory bowel disease (IBD), which includes ulcerative colitis and Crohn's disease, are essential in managing symptoms and addressing complications. The selection of surgical procedures is contingent upon the specific conditions and complications that stem from these illnesses.
Here are some common surgical interventions for IBD:
Diverticular Disease of the Colon01:27

Diverticular Disease of the Colon

Diverticular disease involves the formation of diverticula—small sac-like outpouchings of the colonic wall—and their complications. It most commonly affects the sigmoid colon due to higher intraluminal pressure and structural vulnerability. It results from structural weakness and increased pressure in the colon, producing pseudodiverticula that may remain silent or progress to inflammation and serious complications.Structure of DiverticulaIn diverticulosis, these outpouchings are...
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...

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Related Experiment Video

Updated: May 31, 2026

Murine Appendectomy Model of Chronic Colitis Associated Colorectal Cancer by Precise Localization of Caecal Patch
08:51

Murine Appendectomy Model of Chronic Colitis Associated Colorectal Cancer by Precise Localization of Caecal Patch

Published on: August 24, 2019

The appendix may protect against Clostridium difficile recurrence.

Gene Y Im1, Rani J Modayil, Cheng T Lin

  • 1Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, Winthrop-University Hospital, Mineola, New York 11501, USA.

Clinical Gastroenterology and Hepatology : the Official Clinical Practice Journal of the American Gastroenterological Association
|June 25, 2011
PubMed
Summary
This summary is machine-generated.

The presence of an appendix significantly reduces the risk of recurrent Clostridium difficile infection (CDI). Having an appendix may help predict CDI recurrence, but further study is needed.

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Fecal Microbiota Transplantation via Colonoscopy for Recurrent C. difficile Infection
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Published on: December 8, 2014

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Murine Appendectomy Model of Chronic Colitis Associated Colorectal Cancer by Precise Localization of Caecal Patch
08:51

Murine Appendectomy Model of Chronic Colitis Associated Colorectal Cancer by Precise Localization of Caecal Patch

Published on: August 24, 2019

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
  • Immunology

Background:

  • Recurrent Clostridium difficile infection (CDI) is linked to immune system alterations and disrupted gut flora.
  • The appendix, with its gut-associated lymphoid tissue and biofilm production, may play a role in CDI recovery and prevention.

Purpose of the Study:

  • To investigate the association between the presence of an appendix and the recurrence of CDI.

Main Methods:

  • Retrospective review of adult inpatient medical records with CDI from 2005 to 2007.
  • Analysis of clinical variables to determine the association with CDI recurrence.

Main Results:

  • The presence of an appendix showed a significant inverse association with CDI recurrence (adjusted relative risk, 0.398).
  • Advanced age (over 60 years) was associated with an increased risk of CDI recurrence (adjusted relative risk, 2.44).

Conclusions:

  • Appendiceal presence is independently associated with a lower risk of recurrent CDI.
  • Further prospective studies are required to validate this association.
  • Appendix status may aid in predicting CDI recurrence risk.