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| Analysis of Clinical Features and Detection Rate of Colon Cancer in 1595 Cases of Colorectal Polyps |
| ZHANG Yu, ZHOU Wei, LIU Hua-zhu,et al |
| Dept of Oncology,the Central Hospital of Mianyang City, ShiChuan Province, 621000 |
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Abstract 【Objective】To analyze the clinical features of colorectal polyps and detection of colon cancer in 1595 cases.【Methods】The clinical general data of 1595 cases with colorectal polyps (1805 polyps) who underwent colonoscopy were collected and analyzed.【Results】 There was no significant difference in age distribution between patients with colorectal polyps of different gender (P＞0.05). The proportion of patients with colorectal polyps increased with the increase of age, and the proportion in 41~50 years old was significantly higher. Compared with patients ≤ 40 years old (P＜0.05), the proportion of patients ＞ 60 years old was the highest. Among the 1805 polyps, there were 993 (55.01%) adenomatous polyps,which was more that the non adenomatous polyps 812 (44.99%)(P＜0.05). The polyps in ascending, descending, transverse and sigmoid colon and rectum were adenomatous polyps mainly, while polyps at ileocecus were non adenomatous polyps mainly, there were significant differences between the two (P＜0.05). There were 304 cases with colon cancer (312 polyps) detected, and the detection rate was 19.06%. There were significant differences in age, polyp size, pathological types and polyp location between patients with canceration of colorectal polyps and those without canceration (P＜0.01).【Conclusion】The risk of colorectal polyps increases with the increase of age. The adenomatous polyps in the ascending, descending, transverse and sigmoid colon and rectum and non adenomatous polyps at ileocecus are common. Advanced age, large polyps, adenomatous polyps in the ascending colon and rectum can increase the risk of colon cancer.
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Received: 26 December 2016
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2017, Vol. 34 
