INTESTINE Vol.15 No.6(7-1)

Theme Exploring problems of "villous tumor"
Title Problems in treatment for colorectal villous tumors
Publish Date 2011/11
Author Nana Nakayama Department of Endoscopy, Hiroshima University
Author Shinji Tanaka Department of Endoscopy, Hiroshima University
Author Shunichiro Ozawa Department of Endoscopy, Hiroshima University
Author Motomi Terasaki Department of Gastroenterology and Metabolisim, Hiroshima University
Author Kouichi Nakadoi Department of Gastroenterology and Metabolisim, Hiroshima University
Author Sayaka Takata Department of Endoscopy, Hiroshima University
Author Hiroyuki Kanao Department of Endoscopy, Hiroshima University
Author Shiro Oka Department of Endoscopy, Hiroshima University
Author Kazuaki Chayama Department of Gastroenterology and Metabolisim, Hiroshima University
[ Summary ] Colorectal villous tumors are defined as being macroscopically elevated with villous or fine granular surfaces. When focal cancer develops in deep crypts it is rather difficult to identify cancerous lesions from surface structures, such as pit patterns. Polypectomy or EMR (piecemeal EMR) for large villous tumors tends to result in incomplete resection. We should especially consider ESD or surgery, for large villous tumors.
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