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Related Concept Videos

Assessment of the Rectum and Anus01:25

Assessment of the Rectum and Anus

363
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,...
363
Endoscopic Procedures II: Colonoscopy01:25

Endoscopic Procedures II: Colonoscopy

175
The colon, or large intestine, is the final segment of the digestive system. Its primary functions include absorbing water and vitamins produced by gut bacteria and transforming waste from liquid to solid to form stool. In adults, the large intestine is approximately 5 feet long and consists of four main sections:
175
Inflammatory Bowel Disease V: Surgical Management01:21

Inflammatory Bowel Disease V: Surgical Management

196
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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Inflammatory Bowel Disease I: Ulcerative Colitis01:27

Inflammatory Bowel Disease I: Ulcerative Colitis

298
Introduction
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
298
Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

136
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...
136
Chronic Bowel Disorders: Introduction01:17

Chronic Bowel Disorders: Introduction

526
Chronic bowel diseases are a group of long-term conditions affecting the digestive tract, characterized by inflammation and damage to the gut lining. These conditions primarily include irritable bowel syndrome and inflammatory bowel disease.
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
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Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System
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An uncommon colonic polyp.

Margarida Gonçalves1, Joana Sobreiro Silva2, Ana Rebelo3

  • 1Gastrenterology, Braga Hospital, Portugal.

Revista Espanola De Enfermedades Digestivas
|September 12, 2022
PubMed
Summary
This summary is machine-generated.

A colonoscopy revealed a transverse colon lesion initially diagnosed as low-grade dysplasia. Subsequent biopsies after a second colonoscopy showed no dysplasia, indicating a potential resolution or misdiagnosis of the initial finding.

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Area of Science:

  • Gastroenterology
  • Endoscopic imaging
  • Colorectal pathology

Background:

  • Screening colonoscopy is crucial for detecting colorectal neoplasms.
  • Early detection of dysplasia aids in preventing colorectal cancer progression.

Observation:

  • A 50-year-old male presented with a 25mm exophytic transverse colon lesion with central depression.
  • Initial biopsy revealed low-grade dysplasia.
  • A follow-up colonoscopy showed a flat lesion with no lift-sign, precluding endoscopic resection.

Findings:

  • Repeat biopsies from the flat lesion demonstrated no evidence of dysplasia.
  • The initial diagnosis of low-grade dysplasia may have been transient or related to the initial lesion morphology.

Implications:

  • This case highlights the importance of repeat evaluation for indeterminate colorectal lesions.
  • Understanding lesion morphology changes is critical for accurate diagnosis and management.
  • Further research into the natural history of such lesions may refine surveillance strategies.