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Colorectal Cancer Screening for Cancer Survivors

2014-08-27 03:19:10 | BioPortfolio

Summary

The risk of colorectal cancer (CRC) is significant among cancer survivors treated with abdominal radiation therapy (RT). Further, CRC is once of the few cancers for which there is effective screening. Although some expert groups recommend early CRC screening for patients with prior abdominal RT, the effectiveness of early screening is unknown. It is also unknown if radiation-induced CRC passes through a "pre-clinical" phase in which precancerous polyps are detectable and treatable prior to becoming invasive cancers. This study will evaluate whether screening will detect pre-invasive colorectal polyps among survivors treated with RT.

Description

Cancer survivors meeting the COG criteria for CRC screening will undergo colonoscopy and removal of colorectal polyps. Documentation of polyp number, location and pathologic characteristics will be made. Clinical data information will also be collected at the time of patient enrollment.

Study Design

Observational Model: Case-Only, Time Perspective: Retrospective

Conditions

Colorectal Cancer

Intervention

Colonoscopic examination

Location

Dana-Farber Cancer Institute
Boston
Massachusetts
United States
02115

Status

Recruiting

Source

University Health Network, Toronto

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:19:10-0400

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PubMed Articles [15462 Associated PubMed Articles listed on BioPortfolio]

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Medical and Biotech [MESH] Definitions

Tumors or cancer of the COLON or the RECTUM or both. Risk factors for colorectal cancer include chronic ULCERATIVE COLITIS; FAMILIAL POLYPOSIS COLI; exposure to ASBESTOS; and irradiation of the CERVIX UTERI.

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A group of autosomal-dominant inherited diseases in which COLON CANCER arises in discrete adenomas. Unlike FAMILIAL POLYPOSIS COLI with hundreds of polyps, hereditary nonpolyposis colorectal neoplasms occur much later, in the fourth and fifth decades. HNPCC has been associated with germline mutations in mismatch repair (MMR) genes. It has been subdivided into Lynch syndrome I or site-specific colonic cancer, and LYNCH SYNDROME II which includes extracolonic cancer.

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