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Related Concept Videos

Cancer Prevention02:59

Cancer Prevention

Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...
Cancer Prevention02:59

Cancer Prevention

Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...
Endoscopic Procedures II: Colonoscopy01:25

Endoscopic Procedures II: Colonoscopy

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:
Preventive Healthcare Services01:30

Preventive Healthcare Services

Preventive healthcare services keep people healthy via frequent check-ups, screening, and counseling. They primarily aid in disease prevention rather than treating an acute or chronic illness. Preventive treatment also keeps individuals productive and energetic, allowing them to work well into their retirement years. Examples of preventive care services include:
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
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 solid...
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:

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Related Experiment Video

Updated: May 10, 2026

Evaluation of Colorectal Cancer Risk and Prevalence by Stool DNA Integrity Detection
07:35

Evaluation of Colorectal Cancer Risk and Prevalence by Stool DNA Integrity Detection

Published on: June 8, 2020

Postcolonoscopy colorectal cancers are preventable: a population-based study.

Chantal M C le Clercq1, Mariëlle W E Bouwens, Eveline J A Rondagh

  • 1Division of Gastroenterology and Hepatology, Department of Internal Medicine, Maastricht University Medical Center, , Maastricht, The Netherlands.

Gut
|June 8, 2013
PubMed
Summary

Most postcolonoscopy colorectal cancers (PCCRCs) result from procedural errors, particularly missed lesions during colonoscopy. Improving colonoscopy quality, especially for flat, proximal precursors, can prevent these cancers.

Keywords:
Colorectal AdenomasColorectal Cancer

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Structured Approach to Colonoscopy Technique Optimization: A Single-Center Experience with Novice Endoscopists
03:43

Structured Approach to Colonoscopy Technique Optimization: A Single-Center Experience with Novice Endoscopists

Published on: July 11, 2025

Area of Science:

  • Gastroenterology
  • Oncology
  • Preventive Medicine

Background:

  • Colonoscopy quality is crucial for colorectal cancer (CRC) prevention.
  • Postcolonoscopy colorectal cancers (PCCRCs) represent a challenge in CRC screening.
  • Understanding the causes of PCCRCs is essential for improving patient outcomes.

Purpose of the Study:

  • To investigate the etiology of PCCRCs.
  • To identify preventable factors contributing to PCCRCs.
  • To inform strategies for enhancing colonoscopy effectiveness.

Main Methods:

  • Population-based study of CRC patients in South-Limburg (2001-2010).
  • Analysis of colonoscopy, histopathology, and cancer registry data.
  • Categorization of PCCRCs by location (proximal/distal) and morphology (flat/protruded).

Main Results:

  • 147 PCCRCs (2.9%) were diagnosed within 5 years post-colonoscopy.
  • PCCRCs were more frequently proximal, smaller, and flat compared to prevalent CRCs.
  • Procedural factors accounted for 86.4% of PCCRCs, with missed lesions being the most common (57.8%).

Conclusions:

  • The majority of PCCRCs are attributable to procedural factors, primarily missed lesions.
  • Enhancing colonoscopy performance, focusing on detecting and resecting proximal flat precursors, can reduce PCCRC incidence.
  • Quality improvement initiatives are vital for maximizing the protective effect of colonoscopy against CRC.