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Related Concept Videos

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...

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Related Experiment Video

Updated: Jun 6, 2026

The Pocket-Creation Procedure of Endoscopic Submucosal Dissection for Large Rectal Laterally Spreading Tumors
04:09

The Pocket-Creation Procedure of Endoscopic Submucosal Dissection for Large Rectal Laterally Spreading Tumors

Published on: February 13, 2026

Endoscopic submucosal dissection for colorectal neoplasms.

Mitsuhiro Fujishiro1

  • 1Mitsuhiro Fujishiro, Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan.

World Journal of Gastrointestinal Endoscopy
|December 17, 2010
PubMed
Summary

Endoscopic submucosal dissection (ESD) is a developing technique for colorectal neoplasms, offering precise removal of complex tumors. Refined techniques and devices are improving its safety and efficacy for future standard treatment.

Keywords:
Colorectal neoplasmEarly colorectal cancerEndoluminal surgeryEndoscopic mucosal resectionEndoscopic submucosal dissection

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Evaluation of the Effectiveness of Longitudinal Incision for Endoscopic Submucosal Excavation of Gastric Subepithelial Lesions
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Area of Science:

  • Gastroenterology
  • Endoscopic Surgery

Background:

  • Endoscopic submucosal dissection (ESD) is established for esophageal and stomach neoplasms in Japan.
  • Its application for colorectal neoplasms is still developing.

Purpose of the Study:

  • To evaluate the potential and current status of ESD for colorectal neoplasms.
  • To discuss indications, techniques, and safety of colorectal ESD.

Main Methods:

  • Review of indications for colorectal ESD, including intramucosal neoplasms, early-stage carcinomas, and carcinoid tumors.
  • Discussion of ESD's technical advantages (controllable size/shape, resectability of large/fibrotic lesions) and disadvantages (longer procedure time, bleeding, perforation risk).
  • Consideration of ESD as a staging tool for invasion depth and lymphovascular infiltration.

Main Results:

  • ESD is suitable for colorectal neoplasms with low risk of metastasis and technical resectability.
  • ESD allows for precise histological assessment when preoperative prediction is challenging.
  • Despite risks, advancements in techniques and devices have led to acceptable safety.

Conclusions:

  • Colorectal ESD is a promising technique for specific neoplasms.
  • Ongoing refinements suggest it will become a standard treatment for colorectal neoplasms in the future.