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Related Concept Videos

Appendicitis-I: Introduction01:22

Appendicitis-I: Introduction

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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...
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Large Intestine01:09

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The large intestine is divided into three main regions: the cecum, colon, and rectum. Extending from the ileocecal valve to the anus, it frames the small intestine on three sides.
The ileocecal sphincter, a mucous membrane fold, guards the opening from the ileum to the large intestine. This valve permits material from the small intestine to pass into the large intestine. Attached to the ileocecal valve is the cecum. This small pouch, approximately 6 cm long, has a twisted, coiled tube known as...
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Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
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Assessment of the Rectum and Anus01:25

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Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
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Begin by inspecting the perianal and anal areas for color, texture, rashes,...
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Appendicitis-II: Diagnostic Studies and Management01:29

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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
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Inflammatory Bowel Disease V: Surgical Management01:21

Inflammatory Bowel Disease V: Surgical Management

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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:
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Related Experiment Video

Updated: Apr 6, 2026

Murine Appendectomy Model of Chronic Colitis Associated Colorectal Cancer by Precise Localization of Caecal Patch
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Intussusception of the vermiform appendix.

Richard A Dickson-Lowe1, Sherine Ibrahim1, Lamios Munthali2

  • 1Department of General Surgery, Tunbridge Wells Hospital, Tunbridge Wells, UK.

BMJ Case Reports
|July 18, 2015
PubMed
Summary
This summary is machine-generated.

Endometriosis can cause appendicitis, leading to unexpected surgery. This case highlights how endometriosis caused an intussuscepted appendix requiring a right hemicolectomy.

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Area of Science:

  • Gastroenterology
  • Gynecology
  • Surgical Pathology

Background:

  • Appendicitis is a frequent surgical emergency.
  • Diagnosis can be challenging, especially in young women.
  • Laparoscopic appendectomy is a common treatment.

Observation:

  • A patient presented with symptoms suggestive of appendicitis.
  • Laparoscopic appendectomy was planned.
  • The surgery revealed a necrotic, intussuscepted appendix.

Findings:

  • The appendix was intussuscepted and necrotic.
  • Histology confirmed endometriosis as the cause.
  • An open right hemicolectomy was performed.

Implications:

  • Endometriosis should be considered in cases of complicated appendicitis.
  • This case expands understanding of extragenital endometriosis manifestations.
  • Accurate histological diagnosis is crucial for identifying rare causes of appendicitis.