Case Report
Copyright ©2010 Baishideng. All rights reserved
World J Gastroenterol. Jan 21, 2010; 16(3): 392-394
Published online Jan 21, 2010. doi: 10.3748/wjg.v16.i3.392
A laterally-spreading tumor in a colonic interposition treated by endoscopic submucosal dissection
Hideaki Bando, Hiroaki Ikematsu, Kuang-I Fu, Yasuhiro Oono, Takashi Kojima, Keiko Minashi, Tomonori Yano, Takahisa Matsuda, Yutaka Saito, Kazuhiro Kaneko, Atsushi Ohtsu
Hideaki Bando, Hiroaki Ikematsu, Yasuhiro Oono, Takashi Kojima, Keiko Minashi, Tomonori Yano, Kazuhiro Kaneko, Atsushi Ohtsu, Department of Gastrointestinal Oncology & Endoscopy, National Cancer Center Hospital East, Kashiwanoha 6-5-1, Kashiwa, Chiba 277-8577, Japan
Kuang-I Fu, Department of Gastroenterology, Juntendou University Nerima Hospital, Tokyo 177-0033, Japan
Takahisa Matsuda, Yutaka Saito, Endoscopy Division, National Cancer Center Hospital, Tokyo 104-0045, Japan
Author contributions: Bando H designed the research, collected, analyzed and interpreted the data; Ikematsu H, Fu KI, Oono Y, Kojima T, Minashi K, Yano T, Matsuda T, Saito Y, Kaneko K and Ohtsu A wrote and revised the paper.
Correspondence to: Hiroaki Ikematsu, MD, Department of Gastrointestinal Oncology & Endoscopy, National Cancer Center Hospital East, Kashiwanoha 6-5-1, Kashiwa, Chiba 277-8577, Japan. hikemats@east.ncc.go.jp
Telephone: +81-4-71331111 Fax: +81-4-71346928
Received: September 5, 2009
Revised: October 13, 2009
Accepted: October 20, 2009
Published online: January 21, 2010
Abstract

Herein we describe an early colonic carcinoma which developed in a colonic interposition 14 years after surgery for esophageal cancer, which was successfully treated by endoscopic submucosal dissection (ESD). An 80-year-old man underwent colonic interposition between the upper esophagus and stomach after surgery for an early esophageal squamous cell carcinoma in 1994. He received a surveillance endoscopy, and a laterally-spreading tumor of granular type, approximately 20 mm in size, was identified in the colonic interposition. An endoscopic biopsy revealed moderately differentiated adenocarcinoma histologically, however, we diagnosed the lesion as an intramucosal carcinoma based on the endoscopic findings. The lesion was safely and completely removed en bloc by ESD using a bipolar knife. Histologically, the lesion was an intramucosal moderately differentiated adenocarcinoma in a tubular adenoma.

Keywords: Colonic interposition; Early colonic carcinoma; Endoscopic submucosal dissection