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Related Concept Videos

Assessment of the Rectum and Anus01:25

Assessment of the Rectum and Anus

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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.
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
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Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy

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Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
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Lower GI Series: Barium Enema01:23

Lower GI Series: Barium Enema

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A Barium Enema, or a lower GI series, is a specialized radiographic examination designed to visualize the lower gastrointestinal tract, specifically the colon and rectum. This procedure is instrumental in diagnosing various conditions such as colorectal cancer, polyps, diverticulosis, and inflammatory bowel disease.
Procedure Details
The examination begins by inserting a lubricated rectal tube into the patient's rectum to administer a radiopaque barium solution. The barium flow is carefully...
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Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

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This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and...
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Upper GI Series: Barium Swallow01:24

Upper GI Series: Barium Swallow

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The Barium Swallow Study, or a Barium Esophagogram, is a diagnostic imaging method used to visualize the upper gastrointestinal (GI) tract, including the esophagus, stomach, and small intestine. It employs barium sulfate, a radiopaque contrast material, to provide clear images of the upper digestive system, helping to identify abnormalities, diseases, or structural issues.
Purpose and Procedure
Patients undergoing this procedure ingest a liquid containing barium sulfate with a chalky...
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Barrett Esophagus-II: Clinical Manifestations and Management01:21

Barrett Esophagus-II: Clinical Manifestations and Management

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Individuals with Barrett's esophagus are often asymptomatic, but they may experience symptoms commonly associated with GERD, such as heartburn and acid regurgitation. Additional symptoms can include difficulty swallowing, chest pain, unintentional weight loss, blood in the stool (which may appear black, tarry, or bloody), and episodes of vomiting.
To diagnose Barrett's esophagus, healthcare providers often recommend an endoscopy for those showing symptoms of acid reflux. The procedure...
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Related Experiment Video

Updated: Feb 28, 2026

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

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

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A Symptomatic Coffee Bean: Acute Sigmoid Volvulus.

Michael Scharl1, Luc Biedermann1

  • 1Division of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland.

Case Reports in Gastroenterology
|June 20, 2017
PubMed
Summary
This summary is machine-generated.

Acute sigmoid volvulus, a twisting of the colon, can be successfully treated with endoscopic repositioning. This minimally invasive approach offers a primary treatment option for this abdominal emergency.

Keywords:
Acute sigmoid volvulusColonoscopySigmoid colon

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Area of Science:

  • Gastroenterology
  • Surgical Emergency

Background:

  • Acute sigmoid volvulus is a life-threatening condition caused by colon torsion.
  • It predominantly affects elderly individuals and necessitates prompt intervention.

Observation:

  • A 53-year-old male with a history of severe head injury presented with abdominal distension and diarrhea.
  • Imaging revealed a classic 'coffee bean' sign on X-ray and a dilated, twisted sigmoid colon on CT, indicating obstruction.

Findings:

  • Emergency colonoscopy successfully achieved endoscopic repositioning of the sigmoid colon without air insufflation.
  • A colonic drain was placed, and no relapse occurred during follow-up.

Implications:

  • Colonoscopy represents a viable and conservative primary treatment for acute sigmoid volvulus.
  • This case highlights the efficacy of endoscopic detorsion in managing this surgical emergency.