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Related Concept Videos

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...
Intestinal Obstruction II: Pathophysiology01:07

Intestinal Obstruction II: Pathophysiology

Intestinal obstruction triggers a series of physiological responses, starting with gas and fluid accumulation in the bowel segment proximal to the obstruction, leading to distension. This distended intestine compresses the diaphragm, hindering lung expansion and potentially leading to reduced respiratory effort, atelectasis, and pneumonia.To overcome the blockage, the gut intensifies contractions, causing colicky abdominal pain, nausea, and vomiting, which reduces fluid and food intake and...
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Intestinal Obstruction I: Introduction

Intestinal obstruction is a partial or complete blockage of the small or large intestine that disrupts the normal flow of intestinal contents through the lumen. This interruption impairs digestion, absorption, and fluid balance, and may lead to serious complications if not treated promptly.Mechanical ObstructionMechanical obstruction occurs when a physical blockage prevents intestinal contents from passing, arising from within the lumen or the bowel wall, or from external compression.Adhesions,...
Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
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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.
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Pyloric Obstruction01:11

Pyloric Obstruction

Pyloric obstruction, also referred to as gastric outlet obstruction, is a condition characterized by narrowing or blockage at the pylorus—the muscular valve regulating the flow of stomach contents into the duodenum. When this passage becomes impaired, the stomach cannot effectively empty its contents into the small intestine. This disruption leads to a range of gastrointestinal symptoms, including early satiety, bloating, epigastric pain, postprandial nausea, persistent vomiting, and...

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Related Experiment Video

Updated: Jun 26, 2026

Murine Distal Colostomy, A Novel Model of Diversion Colitis in C57BL/6 Mice
08:20

Murine Distal Colostomy, A Novel Model of Diversion Colitis in C57BL/6 Mice

Published on: July 12, 2018

Colonic volvulus--an old problem with a new twist.

C W Lehane1, D M Gold

  • 1Department of Colorectal Surgery, St Vincent's Hospital, Darlinghurst, Sydney, Australia. chrislehane@hotmail.com

Colorectal Disease : the Official Journal of the Association of Coloproctology of Great Britain and Ireland
|January 30, 2009
PubMed
Summary

This case report details a rare instance of total colonic volvulus, where the cecum to descending colon twisted together. This unusual presentation required emergency surgery for acute abdominal pain.

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Creation of Colonic Anastomosis in Mice
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Last Updated: Jun 26, 2026

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Creation of Colonic Anastomosis in Mice
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Published on: January 17, 2019

Area of Science:

  • Gastroenterology
  • Surgical Case Reports

Background:

  • Volvulus, a condition involving intestinal twisting, can lead to obstruction and ischemia.
  • Colonic volvulus most commonly affects the sigmoid and cecum.

Observation:

  • A 51-year-old male presented with acute abdomen symptoms.
  • Emergency laparotomy revealed a unique volvulus involving the cecum to descending colon in continuity.

Findings:

  • The patient was diagnosed with a total colonic volvulus, a rare anatomical presentation.
  • This represents the first reported case of such an extensive colonic twist.

Implications:

  • Highlights the importance of considering rare causes of acute abdomen.
  • May influence diagnostic and surgical approaches for complex volvulus cases.
  • Contributes to the understanding of colonic torsion pathologies.