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Living with Turcot syndrome

An inherited tumor syndrome linking brain tumors with colon polyps or colorectal cancer.

Understanding Turcot syndrome

Turcot syndrome is a hereditary tumor syndrome with two types, linked to brain tumors and colon tumors or polyps.

Type 1 is characterized by a brain tumor called glioblastoma and is often linked with hereditary nonpolyposis colorectal cancer. Type 2 is characterized by a brain tumor called medulloblastoma and familial adenomatous polyposis, which causes many colon polyps.

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 allergy and immune system specialists, brain and nervous system specialists, cancer specialists and genetic specialists.

  3. Ask which tests can help

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

  4. Connect with expert centers

    Immune Deficiency Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Allergy and immune system specialists (allergists / immunologists); Brain and nervous system specialists (neurologists); Cancer specialists (oncologists); Genetic specialists (geneticists)
Expert care
Expert lists: Immune Deficiency Foundation
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 Krishnan Family Foundation 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
Can genetic testing of the PMS2, MLH1, MSH2, and APC genes help?
What screening for colon and brain tumors do you recommend?
Should my family members be tested?

Quick facts

InheritanceAutosomal Recessive

It is caused by changes in the PMS2, MLH1, MSH2, or APC genes. The summary describes it as autosomal dominant, though the record also lists autosomal recessive.

GeneticNeurological

Also known as: constitutional mismatch repair deficiency syndrome; mismatch repair cancer syndrome; turcot's syndrome

Patient organizations

Source: NIH GARD · Turcot syndromeGARD ID 17217 · 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 Turcot syndrome.

Explore the Turcot syndrome blog

Explore research for Turcot syndrome

Explore actively recruiting Turcot syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Turcot syndrome with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • 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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