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Ip-type Submucosal Invasive Colonic Cancer with Lung Metastasis 6 years after Endoscopic Polypectomy, Report of a Case Mitsugi Yasuda 1 , Ryusuke Torisu 2 , Takahiko Misao 3 1Department of Gastroenterology, Kagawa Prefectural Cancer Detection Center 2Department of Internal Medicine, Kagawa Prefectural Cancer Detection Center 3Department of Surgery, Kagawa Prefectural Cancer Detection Center Keyword: 内視鏡的ポリペクトミー , 肺転移 , Ip型 , 大腸sm癌 , endobronchial metastasis pp.769-774
Published Date 2003/4/25
DOI https://doi.org/10.11477/mf.1403100873
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 A 49-year-old woman tested positive for fecal occult blood. Colonscopy revealed a Ip-type irregular surfaced protruding lesion, measuring 10mm, in the descending colon. We performed endoscopic polypectomy for this lesion. Histologically, the lesion showed adenoma and well differentiated adenocarcinoma, invading to the level of the junction between the adenoma and its stalk, without lymphatic or venous permeation. However 6 years after endoscopic polypectomy, an examination of chest CT and bronchoscopy showed lung metastasis with endobronchial invasion. We reviewed the colonic resected specimen histologically, and detected a sprouting of cancer cells at the invasive front. It was concluded that histological findings at the invasive front and long-term follow-up are very important for colonic submucosal cancers, even for those such as this Ip-type, after endoscopic polypectomy.


Copyright © 2003, Igaku-Shoin Ltd. All rights reserved.

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

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