Rare Cancers

How much does having a BRCA1 or BRCA2 gene mutation increase a woman's risk of breast and ovarian cancer? What are the chances of acquiring colon cancer if your grandmother had it?

A small portion of identified cancers result from genetic changes that are inherited- passed down from parents to their children. Individuals with an inherited gene mutation tendency have an increased risk of developing cancer in their lifetime. However, not everyone who is born with a tendency for a gene mutation will develop cancer.

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