BRCA2 hereditary breast and ovarian cancer syndrome
Hereditary breast and ovarian (BRCA2 HBOC) is an condition that is characterized by an increased risk for a variety of different cancers. Women with this condition have a 49-55% risk of developing breast cancer, a 16-18% risk of developing ovarian cancer and a 62% risk of developing contralateral breast cancer by age 70. Men have a 6% lifetime risk of breast cancer.
Other cancer risk
Both men and women with BRCA2 HBOC have an elevated risk for pancreatic cancer. BRCA2 HBOC may also be associated with cancers of the stomach, gallbladder, bile duct, esophagus, stomach, fallopian tube, primary peritoneum, and skin; however, these risks are not well defined.This condition is caused by changes in the BRCA2 and is inherited in an manner. Management may include high risk cancer , chemopreventation and/or surgeries
Symptoms
For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed 80%-99% of people have these symptoms
- Abnormal fallopian tube morphology
- Ovarian neoplasam
- Ovarian tumor
- Primary peritoneal carcinoma
- 30%-79% of people have these symptoms
- Breast carcinoma
- Breast cancer
- 5%-29% of people have these symptoms
- Neoplasm of the pancreas
- Cancer of the pancreas
Diagnosis
The Genetic Testing Registry (GTR) provides information about the genetic tests for this condition. The intended audience for the GTR is health care providers and researchers. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.
Prevention
People with BRCA1 and BRCA2 mutations are recommended to have a transvaginal ultrasound 1-2 times per year. Screening with CA-125 is also recommended. Prophylactic salpingo-oophorectomy (removal of the ovaries and Fallopian tubes to prevent cancer) is recommended at age 35-40 for people with BRCA1 mutations and at age 40-45 for people with BRCA2 mutations.
Treatment
'''olaparib''' (Lynparza) received expanded approval for the maintenance treatment of adult patients with deleterious or suspected deleterious germline or somatic BRCA- (gBRCAm or sBRCAm) advanced epithelial ovarian, fallopian tube or primary peritoneal who are in complete or partial response to first-line platinum based.
Rucaparib approved as monotherapy for the treatment of patients with deleterious BRCA mutation (germline and/or somatic) associated advanced ovarian cancer who have been treated with two or more chemotherapies.
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BRCA1 and BRCA2: Cancer Risk and Genetic Testing. National Cancer Institute. January 2014; http://www.cancer.gov/cancertopics/genetics/brca-fact-sheet.
NIH genetic and rare disease info
BRCA2 hereditary breast and ovarian cancer syndrome is a rare disease.
Rare and genetic diseases | ||||||
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Rare diseases - BRCA2 hereditary breast and ovarian cancer syndrome
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