Hereditary Breast and Ovarian Cancer Syndrome

**Definition:** Autosomal dominant HEREDITARY CANCER SYNDROME in which a mutation most often in either BRCA1 or BRCA2 is associated with a significantly increased risk for breast and ovarian cancers.

**Tree numbers:** - C04.588.180.483 - C04.588.322.455.431 - C04.700.517 - C12.050.351.500.056.630.705.431 - C12.050.351.937.418.685.431 - C12.100.250.056.630.705.431 - C12.900.418.685.431 - C16.320.700.517 - C17.800.090.500.483 - C19.344.410.431 - C19.391.630.705.431

**Synonyms:** - HBOC Syndrome