new research: Risk of Endometrial Cancer for Women Diagnosed With HNPCC-Related (Lynch Syndrome) Co
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Risk of Endometrial Cancer for Women Diagnosed With HNPCC-Related (Lynch Syndrome) Colorectal Carcinoma
HNPCC-Related CRC Associated With Increased Risk of Endometrial Cancer
A Obermair, DR Youlden, JP Young, NM Lindor, JA Baron, P Newcomb, S Parry, JL Hopper, R Haile, MA Jenkins . 2010 Dec 1
Risk of Endometrial Cancer for Women Diagnosed With HNPCC-Related Colorectal Carcinoma
Int J Cancer. 2010 Dec 1;127(11):2678-2684, A Obermair, DR Youlden, JP Young, NM Lindor, JA Baron, P Newcomb, S Parry, JL Hopper, R Haile, MA Jenkins
ABSTRACT
The risk of endometrial cancer (EC) subsequent to a diagnosis of colorectal cancer in women with a germline mutation in a mismatch repair gene [Lynch syndrome or hereditary non-polyposis colon cancer (HNPCC)] is unknown. We estimated the risk of EC following a diagnosis of colorectal carcinoma (CRC) for women with Lynch syndrome. A retrospective cohort study was performed on women diagnosed with CRC with a germline mutation in a mismatch repair (MMR) gene (Lynch syndrome cases), and women with microsatellite stable (MSS) CRC who were not known to carry a germline mutation (non-Lynch cases), identified from the Colon Cancer Family Registry. The incidence of EC following CRC was estimated and compared for women with and without Lynch syndrome, using adjusted hazards ratios calculated for time at risk among each group. A total of 112 women with Lynch syndrome and a previous diagnosis of CRC were compared with 908 women without Lynch and with a MSS CRC diagnosis. The estimated 10-year cumulative risk of EC subsequent to CRC was 23.4% [95% confidence interval (CI): 15–36%] for Lynch syndrome women compared with 1.6% (95% CI: 0.7–3.8%) for non-Lynch women. After adjusting for ascertainment, age at diagnosis and diagnosis of other cancers, risk of subsequent diagnosis with EC was elevated sixfold in women with Lynch syndrome compared with non-Lynch women (HR 6.2; 95% CI 2.2–17.3; p = 0.001). Approximately one quarter of women diagnosed with Lynch syndrome-associated CRC developed EC within 10 years. This supports the sentinel cancer concept and suggests that active and early management is important for these women.
HNPCC-Related CRC Associated With Increased Risk of Endometrial Cancer
A Obermair, DR Youlden, JP Young, NM Lindor, JA Baron, P Newcomb, S Parry, JL Hopper, R Haile, MA Jenkins . 2010 Dec 1
Risk of Endometrial Cancer for Women Diagnosed With HNPCC-Related Colorectal Carcinoma
Int J Cancer. 2010 Dec 1;127(11):2678-2684, A Obermair, DR Youlden, JP Young, NM Lindor, JA Baron, P Newcomb, S Parry, JL Hopper, R Haile, MA Jenkins
ABSTRACT
The risk of endometrial cancer (EC) subsequent to a diagnosis of colorectal cancer in women with a germline mutation in a mismatch repair gene [Lynch syndrome or hereditary non-polyposis colon cancer (HNPCC)] is unknown. We estimated the risk of EC following a diagnosis of colorectal carcinoma (CRC) for women with Lynch syndrome. A retrospective cohort study was performed on women diagnosed with CRC with a germline mutation in a mismatch repair (MMR) gene (Lynch syndrome cases), and women with microsatellite stable (MSS) CRC who were not known to carry a germline mutation (non-Lynch cases), identified from the Colon Cancer Family Registry. The incidence of EC following CRC was estimated and compared for women with and without Lynch syndrome, using adjusted hazards ratios calculated for time at risk among each group. A total of 112 women with Lynch syndrome and a previous diagnosis of CRC were compared with 908 women without Lynch and with a MSS CRC diagnosis. The estimated 10-year cumulative risk of EC subsequent to CRC was 23.4% [95% confidence interval (CI): 15–36%] for Lynch syndrome women compared with 1.6% (95% CI: 0.7–3.8%) for non-Lynch women. After adjusting for ascertainment, age at diagnosis and diagnosis of other cancers, risk of subsequent diagnosis with EC was elevated sixfold in women with Lynch syndrome compared with non-Lynch women (HR 6.2; 95% CI 2.2–17.3; p = 0.001). Approximately one quarter of women diagnosed with Lynch syndrome-associated CRC developed EC within 10 years. This supports the sentinel cancer concept and suggests that active and early management is important for these women.
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