Study: Childhood cancer survivors face new risks

FILE - In this April 19, 2007 file photo, a lab officer cuts a DNA fragment under UV light from an agarose gel for DNA sequencing as part of research to determine genetic mutation in a blood cancer patient, in Singapore, which prides itself as an advanced medical treatment and research hub. (AP Photo/Wong Maye-E, File)

FILE - In this April 19, 2007 file photo, a lab officer cuts a DNA fragment under UV light from an agarose gel for DNA sequencing as part of research to determine genetic mutation in a blood cancer patient, in Singapore, which prides itself as an advanced medical treatment and research hub. (AP Photo/Wong Maye-E, File)

CHICAGO (AP) — Women treated with chest radiation for cancer when they were girls have a higher risk of developing breast cancer than has been realized.

A new study finds that these childhood cancer survivors are developing breast cancer at rates similar to women with inherited genes that increase risk. By age 50, about 24 percent of them are developing breast cancer. Risk was seen even from moderate doses of radiation, suggesting that more women may need annual mammograms to watch for breast cancer.

Children treated today for cancer get lower doses of radiation to smaller areas of the body than kids did in the past, so their future risks should be lower.

The study was being presented Monday at a cancer conference in Chicago.

Associated Press
Copyright 2012 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.


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