Family history of breast cancer when to screen free
Breast cancer is common and most breast cancers are not caused by genetic factors. Therefore most womens family history of breast cancer is due to chance alone. For a small number of women with a family history, this may be due to a gene change in a blood relative that increases the risk of cancer.
Sep 01, 2017 For screening purposes, a woman is considered to be at average risk if she doesnt have a personal history of breast cancer, a strong family history of breast cancer, or a genetic mutation known to increase risk of breast cancer (such as in a BRCA gene), and has not had chest radiation therapy before the age of 30.
How can the answer be improved?
Family History. In some cases, a strong family history of breast cancer is linked to having an abnormal gene associated with a high risk of breast cancer, such as the BRCA1 or BRCA2 gene. In other cases, an abnormal CHEK2 gene may play a role in developing breast cancer.
A greater than 20 percent lifetime risk of invasive breast cancer based mainly on family history (Estimate your lifetime risk or learn more about risk. ) NCCN recommends women with an ATM, CDH1, CHEK2, NBN or NF1 gene mutation, consider breast MRI as part of their breast cancer screening [
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