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Updated: May 1, 2026

The Pocket-Creation Procedure of Endoscopic Submucosal Dissection for Large Rectal Laterally Spreading Tumors
Published on: February 13, 2026
Colorectal ESD: current indications and latest technical advances.
Yutaka Saito1, Taku Sakamoto1, Takeshi Nakajima1
1Endoscopy Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan.
Endoscopic submucosal dissection (ESD) is an effective treatment for early colorectal cancers up to 5 cm. This minimally invasive procedure offers higher en bloc resection rates compared to conventional methods, leading to insurance coverage in Japan.
Area of Science:
- Gastroenterology
- Endoscopic Surgery
- Oncology
Background:
- Colorectal endoscopic submucosal dissection (ESD) is increasingly performed.
- Its effectiveness for specific early colorectal cancers is well-documented.
Purpose of the Study:
- To summarize the effectiveness and indications of colorectal ESD.
- To highlight its advantages over conventional endoscopic mucosal resection (EMR) and surgery.
Main Methods:
- Review of recent clinical results and Japanese government indications for colorectal ESD.
- Comparison of ESD with conventional EMR and surgical resection for noninvasive colorectal tumors.
Main Results:
- ESD is effective for early colorectal cancers (2-5 cm) not easily resected by conventional EMR.
- ESD achieves higher en bloc resection rates and is less invasive than surgery.
Conclusions:
- Colorectal ESD is a highly effective and minimally invasive treatment option.
- Favorable clinical outcomes have led to Japanese health insurance coverage for ESD.
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