Japanese

Endoscopic Findings of "Former Early Gastric Cancer" and "Current Early Gastric Cancer" Tomohiko Moriyama 1 , Daisuke Akiyoshi 1 , Takehiro Torisu 1 , Atsushi Hirano 1 , Shin Fujioka 1 , Yuta Fuyuno 1 , Yasuhumi Hori 2 , Minako Fujiwara 2 , Katsuya Hirakawa 3 , Hiroyuki Kobayashi 4 , Motohiro Esaki 1 , Takayuki Matsumoto 5 1Department of Medicine and Clinical Science, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan 2Department of Anatomic Pathology, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan 3Division of Gastroenterology, Fukuoka Red Cross Hospital, Fukuoka, Japan 4Division of Gastroenterology, International University of Health and Welfare Fukuoka Sanno Hospital, Fukuoka, Japan 5Division of Gastroenterology, Department of Internal Medicine, School of Medicine, Iwate Medical University, Morioka, Japan Keyword: 早期胃癌 , Helicobacter pylori , 未感染 , 除菌治療 , 胃底腺型胃癌 pp.534-544
Published Date 2018/5/24
DOI https://doi.org/10.11477/mf.1403201349
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 Although gastric ulcers and polyps were formerly thought to be pre-cancerous lesions, Helicobacter pylori is currently defined as a definite carcinogen. However, along with changes in environmental factors, such as H. pylori infection, the clinicopathological characteristics of early gastric cancer have drastically changed over the past decades. Although most of the "former" gastric cancers have arisen from H. pylori-infected gastric mucosa, some "current" gastric cancers have arisen from H. pylori-eradicated or H. pylori-non-infected gastric mucosa. The analysis of findings of image-enhanced endoscopy with magnification has advanced and helped the endoscopic diagnosis of "current" early gastric cancer. Therefore, for the accurate diagnosis of "current" early gastric cancer, endoscopists should be familiar with these endoscopic findings.


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