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Japanese

Long Term Prognosis of Poorly Diffentiated Gastric Adenocarcinoma Treated by Endoscopic Submucosal Dissection Tsuneo Oyama 1 , Akihisa Tomori 1 , Akiko Takahashi 1 , Yoko Kitamura 1 , Kin-ichi Hotta 1 , Yoshinori Miyata 1 1Department of Gastroenterology, Saku Central Hospital, Saku, Japan Keyword: 胃癌 , 未分化型癌 , 粘膜内癌 , ESD , 長期予後 pp.81-88
Published Date 2009/1/25
DOI https://doi.org/10.11477/mf.1403101564
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 Intramucosal poorly differentiated gastric adenocarcinoma treated by ESD from Jan. 2000 to March 2005 was investigated in this study. The median observation period was 54 months. Extended indication group was defined as follow ; 20mm or less in size, invasion depth was mucosal layer without ulcer. 8 patients were classified as belonging to the extended indication group 17 patients were classified as the extra-indicated group.

 There were no cases of perforation and bleeding. R0 resection rate(En bloc and lateral margin was negative)was 80%. Especially, R0 resection rate in the extended group was 100%. 4 patients in the extra-indication group were treated by gastrectomy and one patient had lymph node metastasis.

 The local recurrence rate was 0% and no patients in the extended group died of gastric cancer. The possibility to extend the indication for poorly differentiated adenocarcinoma was shown from our data.


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

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