John Muir Health
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Approximately five to ten percent of breast cancers are believed to have a genetic component, resulting from DNA mutations. Some women have inherited defective copies of certain genes known as BRCA1 and BRCA2, which significantly increases their risk of developing breast cancer. These genes normally function as tumor suppressor genes, blocking abnormal cellular growth and helping to prevent breast cancer from developing. When these genes are defective or mutated, they no longer perform their role of suppressing tumor growth. Tests are now available to determine if BRCA1 and BRCA2 gene mutations are present.

A comprehensive cancer risk counseling service is available for patients who are concerned about hereditary or non-hereditary risk factors for cancer. Genetic counseling focuses on genetic testing, the etiology of cancer, hereditary and non-hereditary risks (including environmental and lifestyle factors), reproduction after a cancer diagnosis, and other up-to-date information, enabling women to make informed decisions about their cancer risk.

We are here for education, support and to help you navigate your way through your diagnosis, treatment and recovery.

Call (925) 947-3322.

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