Stomach and Intestine(Tokyo) Volume 51, Issue 5 (May 2016)

Magnifying Narrow Band Imaging of Undifferentiated-type Carcinoma in the Stomach Masaaki Kobayashi 1 , Hiroki Sato 2 , Satoru Hashimoto 2 , Ken-ichi Mizuno 2 , Manabu Takeuchi 2 , Takahiro Hoshi 1 , Shinichi Morita 1 , Tsutomu Kanefuji 1 , Takeshi Suda 1 , Yuichi Sato 2 , Shuji Terai 2 1Department of Gastroenterology and Hepatology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Minamiuonuma, Japan 2Division of Gastroenterology and Hepatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan Keyword: 画像強調内視鏡 , narrow band imaging , H. pylori , 早期胃癌 , 質的診断 pp.622-633
Published Date 2016/5/24
  • Abstract
  • Look Inside
  • Reference
  • Cited by

 We evaluated 35 early, undifferentiated gastric cancers that were identified in 34 patients who underwent endoscopic submucosal dissection. Narrow-band imaging with magnifying endoscopy of the undifferentiated cancers revealed combinations of the expanded intervening part, wavy microvessel, and corkscrew patterns. The wavy microvessel and corkscrew patterns were identified in the undifferentiated cancers involving to the surface and mucosal layers, respectively. Microsurface patterns of the expanded intervening part were useful for recognizing undifferentiated cancers that had spread into the mucosal neck zone. Signet ring cell carcinomas without Helicobacter pylori infections were correlated with the findings of the expanded intervening part. In some lesions of the corkscrew patterns, wavy microvessels were derived from preexisting collecting venules. To make an accurate diagnosis of the undifferentiated cancers, understanding the combination appearances between cancer cells and non-cancer microvessels is recommended.

Copyright © 2016, Igaku-Shoin Ltd. All rights reserved.


51巻5号 (2016年5月)
電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院