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CC BY-NC-ND 4.0 · Endosc Int Open 2022; 10(04): E291-E292
DOI: 10.1055/a-1776-7729
Editorial

In addition to free deep margins, R0 resection should be required for T1 colorectal cancers to inform further surgical resection

Naoya Toyoshima
Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
,
Seiichiro Abe
Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
,
Yutaka Saito
Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
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Endoscopic treatment of T1 colorectal cancer (CRC) has become technically feasible with the development of various endoscopic treatment techniques, such as endoscopic submucosal dissection and endoscopic full-thickness resection. A recent study revealed that endoscopic resection of T1 CRCs is acceptable prior to considering open surgery [1]. A multicenter retrospective study from Japan showed favorable long-term outcomes for endoscopic resection in patients with T1 CRC and a low risk of lymph node metastasis (LNM) [2]. The National Comprehensive Cancer Network [NCCN] guidelines recommend additional surgical resection with lymph node dissection for any T1b CRC, given the potential risk of LNM [3].



Publication History

Article published online:
14 April 2022

© 2022. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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Refers to:

Impact of ≥ 0.1-mm free resection margins on local intramural residual cancer after local excision of T1 colorectal cancerEndosc Int Open 2022; 10(04): E282-E290
DOI: 10.1055/a-1736-6960

 

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