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Inherited breast cancer clues

About 10% of all breast cancers are due to an inherited genetic alteration. Some clues of an inherited breast cancer pattern are:

  • Breast cancer diagnosed at age 50 or younger
  • Two breast cancers diagnosed in a single individual or breast and ovarian cancer diagnosed in a single individual
  • Having a family history of breast and/or ovarian cancer in two or more relatives on the same side of the family
  • Male breast cancer
  • Being a member of a family with a known alteration in a breast cancer susceptibility gene
  • Breast cancer in a family with other cancers such as thyroid cancer, pancreatic cancer, and sarcomas

Click here to view a family tree that shows a possible inherited breast cancer pattern