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Living with Rosette-forming glioneuronal tumor

A rare brain tumor made of nerve and support cells that often arises near the back of the brain and can cause headaches and balance problems.

Understanding Rosette-forming glioneuronal tumor

Rosette-forming glioneuronal tumor is a rare type of brain tumor whose cells form circular patterns called rosettes.

It is made of nerve cells and glial cells, which support and protect nerve cells. It usually occurs in the midline of the brain, in the fourth ventricle or cerebellum. Some people have no symptoms and the tumor is found by chance.

Signs & symptoms

Symptoms vary from person to person. GARD lists these in its summary:

  • Headache
  • Vomiting
  • Swelling of the optic nerve (papilledema)
  • Seizures
  • Poor balance and coordination (ataxia)
  • Vision problems

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 brain and nervous system specialists and 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
Brain and nervous system specialists (neurologists); Cancer specialists (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 Brain Tumor Society
  • 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
Where is the tumor, and what does that mean for my care?
What treatment and follow-up scans do I need?
Which specialists should be on my team?

Quick facts

GARD doesn't describe a cause for this condition yet.

Neurological

Also known as: dnt of the cerebellum; dysembryoplastic neuroepithelial tumor of cerebellum; dysembryoplastic neuroepithelial tumour of cerebellum; rgnt; rosette-forming glioneuronal neoplasm; rosette-forming glioneuronal tumor of fourth ventricule

Patient organizations

Source: NIH GARD · Rosette-forming glioneuronal tumorGARD ID 13593 · 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 Rosette-forming glioneuronal tumor.

Explore the Rosette-forming glioneuronal tumor blog

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Explore actively recruiting Rosette-forming glioneuronal tumor studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Rosette-forming glioneuronal tumor 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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