Flat depressed early colon cancer--a case report. |
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Authors: | D. Han J. H. Sohn Y. J. Cho Y. C. Jeon H. J. Kim K. N. Park S. J. Chang |
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Affiliation: | College of Medicine, Hanyang University Kun Hospital, Kyunggi-do, Korea. |
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Abstract: | A flat depressed early colon cancer (FDEC) is characterized by non-polypoid growth pattern, no association of adenomatous tissues and a tendency of even small lesions toward submucosal invasion and lymph node metastasis. It supports de novo carcinogenesis of colorectal cancer, although most colorectal cancers arise in pre-existing adenoma (adenoma-carcinoma sequence). There have been few reports of small depressed cancers because of the difficulty in colonoscopic detection and the rapid development to ulcerating advanced cancers. We report a case of flat depressed early colon cancer confined to mucosa detected by indigo carmine contrast colonoscopy. |
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