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Living with Hereditary site-specific ovarian cancer syndrome

An inherited pattern of ovarian cancer risk caused by gene changes, often with other cancer risks too.

Understanding Hereditary site-specific ovarian cancer syndrome

Hereditary site-specific ovarian cancer syndrome is ovarian cancer that runs in families because of inherited gene changes.

It is usually tied to extra risks of other cancers. The most common are hereditary breast and ovarian cancer (HBOC) and hereditary nonpolyposis colorectal cancer (HNPCC, also called Lynch syndrome). Gene changes in STK11, which causes Peutz-Jeghers syndrome, are linked to a risk of ovarian cancer, typically sex cord stromal tumors.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet.

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include gynecologic cancer specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
Gynecologic cancer specialists (gynecologic oncologists)
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with National Ovarian Cancer Coalition and other patient organizations
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Should I have genetic testing for BRCA1, BRCA2, or other genes?
What screening and prevention options exist for my risk?
Which relatives should be told about a gene change?

Quick facts

GARD says it is caused by inherited gene changes. These include BRCA1 and BRCA2 (HBOC), DNA mismatch-repair genes (HNPCC), and STK11. Other genes, such as RAD51C, RAD51D, and PALB2, raise risk in a minority of people.

Patient organizations

Source: NIH GARD · Hereditary site-specific ovarian cancer syndromeGARD ID 20468 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Hereditary site-specific ovarian cancer syndrome.

Explore the Hereditary site-specific ovarian cancer syndrome blog

Explore research for Hereditary site-specific ovarian cancer syndrome

Explore actively recruiting Hereditary site-specific ovarian cancer syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Hereditary site-specific ovarian cancer syndrome with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
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  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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