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Diagnosis and the Therapeutic Strategy for the Rectal Carcinoid Tumors-Including the Difference between NET G1 and G2 Yusuke Saitoh 1 , Masaki Taruishi 1 , Ryuji Sugiyama 1 , Hirohito Kawauchi 1 , Kazumasa Nakamura 1 , Ryuji Sukegawa 1 , Kenichiro Ozawa 1 , Atsushi Chiba 1 , Akio Takada 2 , Mikihiro Fujiya 3 , Akinori Iwashita 4 , Mitsuo Iida 5 1Digestive Disease Center, Asahikawa City Hospital, Asahikawa, Japan 2Division of Pathology, Asahikawa City Hospital, Asahikawa, Japan 3Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa, Japan 4Department of Pathology, Fukuoka University Chikushi Hospital, Chikushino, Japan 5Kyushu Central Hospital, Fukuoka, Japan Keyword: 直腸カルチノイド腫瘍 , WHO分類 , NET G1 , NET G2 , Ki-67指数 pp.1004-1015
Published Date 2013/6/25
DOI https://doi.org/10.11477/mf.1403113857
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 According to WHO classification in 2010, rectal carcinoid tumor of our 55cases and 379cases collected through questionnaire survey in 2005 were divided into NET G1 and G2 and clinicopathologically compared. Moreover therapeutic strategy for rectal carcinoid tumor was proposed. Compare with NET G1, NET G2 was more frequently seen in the elderly(p=0.03)female(p<0.001), in larger size(p<0.001), with uneven or ulcerative surface structure(p<0.001), surgically resected(p=0.02), vessel permeation(p=0.04), lymphnode and distant metastasis(p<0.001 respectively). However there was no significant difference in incidence of disease death between NET G1 and G2(p=0.07). If rectal carcinoid tumor was detected in the elderly female and the size was more than 10mm with uneven or ulcerative surface structure, detail examination and careful therapeutic strategy should be scheduled with the suspicious of high malignant potential of NET G2.


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

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