Related Experiment Video
Updated: Jun 26, 2026
The Pocket-Creation Procedure of Endoscopic Submucosal Dissection for Large Rectal Laterally Spreading Tumors
Published on: February 13, 2026
Selection of cap size in endoscopic submucosal resection with cap aspiration for rectal carcinoid tumors
Dae Kyung Sohn1, Kyung Su Han, Chang Won Hong
1Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea.
Background:
Small rectal carcinoid tumors (
Materials And Methods:
Forty-one consecutive patients with 42 rectal carcinoid tumors who underwent ESMR-C from October 2003 to November 2006 were assessed. Complete resection was defined as a clean margin that was free of tumor invasion at the lateral and inferior edges.
Results:
The rate of complete tumor removal by ESMR-C was 85.7% and no complications occurred. The tumor size, location, and method of resection did not significantly affect the completeness of resection. Univariate analysis showed that the rate of complete resection was significantly higher when using 19.2-mm, compared with 13.9-mm, caps (96.0 vs. 70.6%; P = 0.032). Multivariate analysis showed that the cap size was an independent factor predicting the completeness of resection.
Conclusion:
The use of large-sized caps increases the completeness of the resection of rectal carcinoid tumors when using ESMR-C.
