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Endoscopic features of small colon cancers smaller than 10 mm in diameter



Endoscopic features of small colon cancers smaller than 10 mm in diameter



Stomach & Intestine (Tokyo) 22(4): 407-412



Small colon cancers, smaller than 10 mm in diameter, were examined with respect to endoscopic findings. Out of 157 polypectomized cases (5-9 mm in diameter) 19 specimens proved to have cancer. The ratio of ca to ca + ad (ca:cancer, ad:adenoma) was 13.6% (19/140). When calculated for semipedunculated type of adenoma in a similar way, the ratio was 22.8%, and that for pedunculated type, 5.5%. Ten out of 19 polypectomized cases (5-9 mm in diameter) had such abnormal configurations as notching, constriction and concavity endoscopically. It was concluded that small semipedunculated polyps with abnormal configuration were cancers with proability higher than 50%. We could not calculate the probability of correctly differentiating cancer from benign polyp in this study.

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Accession: 005359259

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