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Hereditary Ovarian Cancer - Breaking down the genetic connection

Hereditary Ovarian Cancer - Breaking down the genetic connection
  • What is ovarian cancer?
  • What are the common symptoms of ovarian cancer?
  • Can ovarian cancer spread?
  • Ovarian cancer risk factors
  • How common is hereditary ovarian cancer?
  • Genetic mutations in ovarian cancer
  • What is considered a strong family history of cancer?
  • What should I do if I have a family history of ovarian cancer?

What is ovarian cancer?

Ovarian cancer is a type of cancer that begins in the ovaries, the female reproductive organs that produce eggs. It occurs when abnormal cells divide and grow uncontrollably in the ovaries, eventually becoming a tumor.

What are the common symptoms of ovarian cancer?

Most people do not have symptoms when ovarian cancer is in its early stages. When symptoms develop, it is most likely that the cancer has advanced. The most common symptoms include:

  • Feeling bloated
  • Feeling full quickly when eating
  • Vaginal bleeding even after menopause
  • Back pain or abdominal pain
  • Frequent urination

Additionally, changes in bowel habits, such as constipation or diarrhea, and unexplained weight loss can be indicative of ovarian cancer.

It is always good to closely monitor the symptoms. If you have any signs for two weeks or more, it is good to consult a doctor and get medical advice.

Can ovarian cancer spread?

Yes, ovarian cancer can spread from the ovaries to other parts of the body, such as the peritoneum, lymph nodes, and distant organs. The spread of cancer is known as metastasis, and the extent of metastasis can affect the stage and prognosis of ovarian cancer.

Ovarian cancer risk factors

  • Age: Ovarian cancer risk increases with age, like most cancers. It is most commonly diagnosed in older people.
  • Inherited gene mutations: BRCA1 and BRCA2 gene mutations increase the risk of ovarian cancer. Genes associated with Lynch syndrome also increase the risk.
  • Family history: If a first-degree relative, such as a mother, sister, or daughter, has had ovarian cancer, the risk is higher. Additionally, the risk may further increase if multiple family members are affected or if the cancer occurs at a younger age.
  • Previous cancer: If you have had a history of other cancers such as breast cancer, uterine or colon cancer.
  • Hormone replacement therapy: Hormone replacement therapy (HRT), especially estrogen-alone formulations, has been associated with a slightly increased risk of ovarian cancer in postmenopausal women.
  • Endometriosis: Women with endometriosis, a condition where tissue similar to the lining of the uterus grows outside the uterus, may have a slightly elevated risk of developing ovarian cancer.
  • Never getting pregnant: Never getting pregnant or trouble getting pregnant.

How common is hereditary ovarian cancer?

The prevalence of hereditary ovarian cancer varies among different populations. Estimation shows that about 15-20% of ovarian cancers may be genetic, with a significant portion of those cases involving BRCA mutations.

Genetic mutations in ovarian cancer

Genetic mutations play a significant role in ovarian cancer, with mutations associated with genes like BRCA1 and BRCA2. These mutations can be inherited, increasing the risk of ovarian and breast cancer. Genetic testing can identify these mutations, enabling individuals with a family history or other risk factors to make informed decisions about proactive measures, such as increased surveillance or risk-reducing surgeries, to manage their cancer risk.

Although ovarian cancer is common in women, the gene mutations are inherited either from mother or father. Not all people with inherited gene mutations are at risk of developing ovarian cancer.

What is considered a strong family history of cancer?

Ovarian cancer can run in families. If a first-degree relative of yours, such as a mother, daughter, or sister, is diagnosed with ovarian cancer, then your chances are higher. The risk also gets higher if you have one or more relatives diagnosed with ovarian cancer.

What should I do if I have a family history of ovarian cancer?

If you have a family history of ovarian cancer, consult with a healthcare professional, preferably a genetic counselor, to assess your specific risk. Genetic testing for gene mutations in BRCA1 and BRCA2 genes can help you determine your risk of certain hereditary cancers.

Conclusion:

Individuals with a strong family history of ovarian or breast cancer may undergo genetic counseling to assess their risk, and if deemed appropriate, they can opt for genetic testing. Eiira provides genetic testing to assess your hereditary cancer risks. You can assess your risk for ovarian cancer and make decisions after consulting a genetic counselor. The results help inform personalized risk assessments and guide preventive measures, such as increased surveillance or risk-reducing interventions.

References

Centers for disease control and prevention (CDC) - Ovarian Cancer
Medlineplus.gov - Ovarian Cancer

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