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Clinicopathological Features of Helicobacter pylori-Negative Gastric Cancer Hiroki Yaita 1 , Koichi Kurahara 1 , Keisuke Kawasaki 1 , Yumi Oshiro 2 , Shuji Kochi 1 , Toshifumi Morishita 1 , Tomohiro Nagasue 1 , Hirofumi Abe 1 , Miyuki Sawano 1 , Yukio Takahashi 3 , Takashi Yao 4 , Tadahiko Fuchigami 1 1Division of Gastroenterology, Matsuyama Red Cross Hospital, Matsuyama, Japan 2Department of Pathology, Matsuyama Red Cross Hospital, Matsuyama, Japan 3Division of Surgery, Matsuyama Red Cross Hospital, Matsuyama, Japan 4Department of Human Pathology, Juntendo University, Graduate School of Medicine, Tokyo Keyword: H. pylori陰性胃癌 , H. pylori未感染 , 非萎縮粘膜 , 分化型胃癌 , 胃底腺型胃癌 pp.863-873
Published Date 2014/5/25
DOI https://doi.org/10.11477/mf.1403114174
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 To clarify the clinicopathological features of HpNGC(Helicobacter pylori-negative gastric cancer), we retrospectively investigated the resected gastric cancers from 1,065 patients. Among patients who had undergone endoscopic resection or surgery, 14 patients(1.31%)had HpNGC : 8 with differentiated adenocarcinoma(57.1%), 5 with undifferentiated adenocarcinoma(35.7%), and one with mucinous adenocarcinoma(7.1%). In addition, among 1,065 patients, 10(0.94%)had GA-FG(gastric adenocarcinoma of the fundic gland type), 5 of which had HpNGC. Approximately 90% of GA-FG occurred in the fundic gland, and 80% had the vascular ectasia of the faded tumor surface. In 66.7% of GA-FG cases, a hypoechoic lesion was observed between the deep layer of the mucosa and the submucosa using endoscopic ultrasonography. Further epidemiological studies are warranted to clarify HpNGC, including GA-FG.


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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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