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Japanese

A Questionnaire Survey Concerning Colorectal Carcinoid Tumors―Therapeutic Strategy for Colorectal Carcinoid Tumors Yusuke Saitoh 1 , Akinori Iwashita 2 , Mitsuo Iida 3 1Department of Gastroenterology, Asahikawa City Hospital 2Department of Pathology, Fukuoka University Chikushi Hospital 3Department of Medicine and Clinical Science, Graduate School of Medical Science, Kyushu University Keyword: 大腸カルチノイド腫瘍 , 直腸 , 内視鏡治療 , 外科切除 pp.200-213
Published Date 2005/2/25
DOI https://doi.org/10.11477/mf.1403100203
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  In order to elucidate the therapeutic strategy for colorectal carcinoid tumors, 648 lesions of 648 cases colorectal carcinoid tumors were collected and analyzed through a quentionnaire survey of 31 institutions in Japan. Carcinoid tumors 6 mm or less in size can be treated by endoscopic therapy alone (endoscopic mucosal resection : EMR) because they have neither lymphnode nor distant metastasis. For the lesions 7~10 mm in size, EUS is recommended and submucosal invasion depth should be measured prior to determination of therapy. Lesions with less than 4,000μm submucosal invasion depth can be treated by EMR alone. However, the lesions with 4,000μm or more submucosal invasion depth can be initially treated by EMR, but additional surgery should be considered for the lesions with lymphatic or venous permeation in post EMR specimens. Additional surgery should be also considered for nodular shaped lesions or lesions with surface ulcers. For the lesions with 11 mm or more in diameter, initial surgical operation with lymphadenectomy should be selected. If the size of the lesion is 11~15 mm in size and if it is diagnosed as a submucosal lesion with a submucosal invasion depth less than 4,000μm (about 1/3 of lesions are 11~15 mm in size), it can be initially resected by EMR and additional surgery should be considered if lymphatic or venous permeation is detected in the post EMR specimens.


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

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