期刊
WORLD JOURNAL OF GASTROENTEROLOGY
卷 20, 期 44, 页码 16389-16397出版社
BAISHIDENG PUBLISHING GROUP INC
DOI: 10.3748/wjg.v20.i44.16389
关键词
Ulcerative colitis-associated colorectal cancer; Risk factor; Dysplasia; Surveillance colonoscopy; Chemoprevention
The association between ulcerative colitis (UC) and colorectal cancer (CRC) has been acknowledged. One of the most serious and life threatening consequences of UC is the development of CRC (UC-CRC). UC-CRC patients are younger, more frequently have multiple cancerous lesions, and histologically show mucinous or signet ring cell carcinomas. The risk of CRC begins to increase 8 or 10 years after the diagnosis of UC. Risk factors for CRC with UC patients include young age at diagnosis, longer duration, greater anatomical extent of colonic involvement, the degree of inflammation, family history of CRC, and presence of primary sclerosing cholangitis. CRC on the ground of UC develop from non-dysplastic mucosa to indefinite dysplasia, low-grade dysplasia, high-grade dysplasia and finally to invasive adenocarcinoma. Colonoscopy surveillance programs are recommended to reduce the risk of CRC and mortality in UC. Genetic alterations might play a role in the development of UC-CRC. 5-aminosalicylates might represent a favorable therapeutic option for chemoprevention of CRC. (C) 2014 Baishideng Publishing Group Inc. All rights reserved.
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