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Cancer Predisposition Syndromes

Inherited conditions that increase lifetime risk of one or several cancers

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Onkoloji department. Book Appointment →

What is Cancer Predisposition Syndromes?

Cancer predisposition syndromes are inherited conditions in which germline alterations of cancer-related genes substantially increase the lifetime risk of one or more cancers. Examples include hereditary breast and ovarian cancer with BRCA1 or BRCA2, Lynch syndrome, Li-Fraumeni syndrome, and familial adenomatous polyposis.

These syndromes account for an estimated 5 to 10 percent of all cancers and can present at younger ages, with multiple primary tumors, or with characteristic family clustering. They have major implications for treatment selection and for relatives who may benefit from cascade testing.

Modern care relies on multi-gene panel testing in dedicated genetics clinics, structured screening pathways, risk-reducing surgery and medications, and life-long psychosocial support. New PARP inhibitors and other targeted therapies further increase the value of accurate diagnosis.

Symptoms

Family with multiple cases of the same or related cancers
Cancer at younger than typical age
Multiple primary cancers in one person
Bilateral or unusual cancer types
Specific findings such as multiple polyps or skin lesions

Risk Factors

Pathogenic germline variants in cancer-related genes
Strong family history across two or more generations
Founder mutations in certain ethnic groups
Specific syndromes such as Lynch and BRCA carriers
Personal history of pediatric or rare cancers

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • When two or more close relatives have the same cancer
  • When cancer occurs at unusually young age
  • When multiple primary cancers develop in one person
  • When characteristic syndromes are suspected on examination
  • Before risk-reducing decisions or pregnancy planning

Treatment Methods

01
Genetic counseling and consent for germline testing
02
Multi-gene panel and targeted variant analysis
03
Tailored surveillance with imaging, endoscopy, and tumor markers
04
Risk-reducing surgery such as mastectomy or oophorectomy
05
Chemoprevention in selected high-risk groups
06
Cascade testing of relatives
07
Psychosocial and reproductive counseling

Which Department to Visit?

You can visit our Onkoloji department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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You can make an appointment with our specialists or contact us for your concerns.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.