Family history and risk. Most women diagnosed with breast cancer don't have any family history of it. Only a very small number of women with breast cancer have a gene that greatly increases the risk of breast cancer. The two genes most often found in hereditary breast cancer are called BRCA1 and BRCA2.
For women with a hereditary risk of breast cancer, the Johns Hopkins Breast Center in Baltimore, MD, offers guidance on genetic testing, screenings and .
Get the facts about the risk factors of ductal carcinoma including age, genetics and treatment history for breast cancer.
About 5% to 10% of breast cancers are thought to be hereditary, caused by abnormal genes passed from parent to child. Most inherited cases of breast cancer .
The above description of ductal carcinoma-in-situ (DCIS) of the breast illustrates how oncologists are frequently called upon to make clinical decisions based on .
Learn how a personal history of invasive breast cancer, ductal carcinoma in situ. gene mutation have an increased risk of breast cancer and ovarian cancer .