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Related Concept Videos

Endoscopic Procedures I: Esophagogastroduodenoscopy01:29

Endoscopic Procedures I: Esophagogastroduodenoscopy

An Esophagogastroduodenoscopy (EGD) is a diagnostic procedure in which an endoscopist uses a flexible, lighted endoscope to visualize the upper gastrointestinal (GI) tract. The procedure includes visualizing the oropharynx, esophagus, stomach, and the first part of the small intestine, the duodenum.
During an EGD, the endoscope can be used to:
Endoscopic Procedures III: Video Capsule Endoscopy01:28

Endoscopic Procedures III: Video Capsule Endoscopy

Capsule endoscopy, or wireless or video capsule endoscopy, is a diagnostic procedure for examining the entire gastrointestinal tract. Patients swallow a capsule about the size of a vitamin tablet. The capsule is equipped with a transmitter, a battery, an LED light source, and a color video camera to capture images throughout the gastrointestinal tract. This procedure is particularly useful for diagnosing conditions such as Crohn's disease, ulcerative colitis, tumors, polyps, ulcers, unexplained...
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:
Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy

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...
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...
Ultrasound II: Endoscopic Ultrasound and FibroScan01:25

Ultrasound II: Endoscopic Ultrasound and FibroScan

Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):

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Related Experiment Video

Updated: May 15, 2026

Murine Endoscopy for In Vivo Multimodal Imaging of Carcinogenesis and Assessment of Intestinal Wound Healing and Inflammation
09:42

Murine Endoscopy for In Vivo Multimodal Imaging of Carcinogenesis and Assessment of Intestinal Wound Healing and Inflammation

Published on: August 26, 2014

Endoscopy in screening for digestive cancer.

René Lambert1

  • 1René Lambert, World Health Organization International Agency for Research on Cancer, Screening Group, Lyon 69372, France.

World Journal of Gastrointestinal Endoscopy
|January 8, 2013
PubMed
Summary

Endoscopy plays a crucial role in detecting and treating precancerous and cancerous lesions in asymptomatic individuals. This includes upper gastrointestinal endoscopy and colonoscopy for early cancer detection and precursor management.

Keywords:
AdenocarcinomaAdenomaColonEndoscopyEsophagusScreeningStomach

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Intraoperative Gastroscopy for Tumor Localization in Laparoscopic Surgery for Gastric Adenocarcinoma
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Intraoperative Gastroscopy for Tumor Localization in Laparoscopic Surgery for Gastric Adenocarcinoma

Published on: August 9, 2016

Related Experiment Videos

Last Updated: May 15, 2026

Murine Endoscopy for In Vivo Multimodal Imaging of Carcinogenesis and Assessment of Intestinal Wound Healing and Inflammation
09:42

Murine Endoscopy for In Vivo Multimodal Imaging of Carcinogenesis and Assessment of Intestinal Wound Healing and Inflammation

Published on: August 26, 2014

Intraoperative Gastroscopy for Tumor Localization in Laparoscopic Surgery for Gastric Adenocarcinoma
10:31

Intraoperative Gastroscopy for Tumor Localization in Laparoscopic Surgery for Gastric Adenocarcinoma

Published on: August 9, 2016

Area of Science:

  • Gastroenterology and Oncology
  • Diagnostic and Interventional Endoscopy
  • Public Health and Screening Programs

Background:

  • Digestive cancers like esophageal, stomach, and colorectal cancer are linked to lifestyle factors and specific precursor conditions.
  • Asymptomatic individuals may harbor neoplastic lesions, necessitating effective screening strategies.
  • Endoscopy is a primary tool for opportunistic and organized screening for digestive cancers.

Purpose of the Study:

  • To elucidate the role of endoscopy in detecting and treating neoplastic lesions of the digestive mucosa in asymptomatic individuals.
  • To review the current landscape of opportunistic and organized endoscopic screening programs for digestive cancers worldwide.
  • To discuss the diagnostic steps, classification systems, and treatment decisions involved in endoscopic screening.

Main Methods:

  • Review of current literature on endoscopic screening for digestive cancers.
  • Description of diagnostic endoscopy techniques including visual inspection, chromoscopy, magnification, and advanced imaging (FICE).
  • Analysis of screening strategies, selection tests, and evaluation metrics for organized screening programs.

Main Results:

  • Endoscopy is effective in detecting early-stage cancers and precancerous lesions (adenomas).
  • Organized screening programs utilize various selection tests (cytology, photofluorography, fecal occult blood test) prior to endoscopy.
  • Treatment decisions are based on histological prediction, offering options like observation, endoscopic resection, or surgery.

Conclusions:

  • Endoscopic screening is vital for early detection and management of digestive neoplastic lesions in asymptomatic populations.
  • Rigorous quality control in endoscopy is essential to minimize missed diagnoses and interval cancers.
  • The benefits of screening must be weighed against the risks of morbidity and overdetection of non-clinically relevant lesions.