Genetic Testing for Cancer

The personal risk for some hereditary cancers can be determined by genetic testing.

Genetic Testing: BRCA1 or BRCA2

  • 7% of breast cancers.
  • 10-15% of ovarian cancers.
  • Hereditary Breast and Ovarian Cancer (HBOC) Syndrome, an 87% chance of developing breast cancer, and a 63% chance of developing ovarian cancer by age 70.
  • Lynch syndrome is also associated with a higher risk for developing ovarian, stomach, pancreatic, renal, urinary tract, biliary tract, small bowel, and brain cancers.
  • Recommended options include:
  • Frequent checkups
  • Cancer risk-reducing alterations
  • Surgical removal of the affected tissue-prophylactic mastectomy or oophorectomy