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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 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 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 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...
Endoscopic Procedures V: ERCP01:26

Endoscopic Procedures V: ERCP

Endoscopic Retrograde Cholangiopancreatography (ERCP) is a diagnostic procedure that combines endoscopy and fluoroscopy to diagnose and treat conditions related to the bile ducts, pancreatic ducts, and gallbladder. This procedure is beneficial for identifying and addressing blockages, gallstones, strictures, and tumors within the biliary or pancreatic systems. ERCP is both diagnostic and therapeutic, offering the ability to visualize and treat identified problems in one session.
Patient...

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Related Experiment Video

Updated: Jul 20, 2026

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

Routine endoscopy using a magnifying endoscope for gastric cancer diagnosis.

H Tajiri1, T Doi, H Endo

  • 1Department of Internal Medicine, National Shikoku Cancer Center, Ehime, Japan. tajiri@jikei.ac.jp

Endoscopy
|September 24, 2002
PubMed
Summary

Magnifying endoscopy accurately identifies gastric lesion patterns, improving early cancer diagnosis. This technique enhances diagnostic accuracy compared to conventional endoscopy for detecting gastric abnormalities.

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Establishment and Evaluation of a Risk Prediction Model for Pathological Escalation of Gastric Low-Grade Intraepithelial Neoplasia
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Area of Science:

  • Gastroenterology
  • Endoscopic Imaging
  • Oncology

Background:

  • Gastric pit mucosal patterns can be visualized with magnification for preliminary evaluation.
  • Magnifying endoscopy may aid in pre-histological diagnosis of gastric lesions.

Purpose of the Study:

  • To correlate fine mucosal patterns observed via magnifying endoscopy with histological findings.
  • To assess the utility of magnifying endoscopy in routine gastrointestinal endoscopy.

Main Methods:

  • A magnifying video endoscope (up to 80x magnification) was used in 318 patients.
  • Endoscopic findings of 211 gastric lesions were compared with histological results.
  • Patients with advanced gastric cancer, lymphoma, or submucosal tumors were excluded.

Main Results:

  • Magnifying endoscopy revealed distinct mucosal patterns for elevated and depressed gastric cancers.
  • Findings correlated closely with mucosal microstructure and histological features.
  • Diagnostic accuracy for small gastric cancers was significantly higher with magnifying endoscopy (sensitivity 96.0%, specificity 95.5%).

Conclusions:

  • Observed mucosal patterns and capillary vessel features using magnifying endoscopy correlate well with pathological diagnoses.
  • Magnifying endoscopy is a valuable tool for predicting histological diagnosis during routine endoscopic procedures.