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Updated: Jun 13, 2026

The Pocket-Creation Procedure of Endoscopic Submucosal Dissection for Large Rectal Laterally Spreading Tumors
Published on: February 13, 2026
[Case reports. Endoscopic resection of rectal carcinoid tumors: classical and submucosal resection with band-snare
Simón Yriberry Ureña1, Juan Combe Gutiérrez, Fernando Barreda Bolaños
1Médico Gastroenterólogo, Servicio de Gastroenterología, INEN, Lima-Perú.
Abstract:
Rectal isolated carcinoid tumor can de treated endoscopically and locally. There is concern about margin involvement due to the fact that there is inward migration of these lessions from the mucosa into deeper layers (submucosa), because of the internal origin in Kutchinsky cells, which are located between mucosa and submucosa (deep in the mucosa). We review and present 6 cases of rectal carcinoid tumors treated endoscopically with polypectomy, polypectomy plus sub mucosal elevation and band -snare-elevation resection. We review current techniques, benefits of elevation, and results from the Endoscopy Unit at the INEN or National Cancer Center (Instituto Nacional de Enfermedades Neoplásicas) in Lima-Perú.
