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Living with Dysembryoplastic neuroepithelial tumor

A benign (non-cancerous) brain tumor, usually in the cortex, in children and young adults who have had partial seizures for a long time.

Understanding Dysembryoplastic neuroepithelial tumor

Dysembryoplastic neuroepithelial tumor is a benign (non-cancerous) brain tumor made of glial and nerve cells.

It is usually found in the outer layer of the brain (the cortex). It occurs in children and young adults who have had partial seizures for a long time. Under a microscope, the tumor has a specific pattern of bundles of nerve fibers.

Signs & symptoms

GARD doesn't list specific symptoms for this condition separately, but its summary describes this feature:

  • Partial seizures over a long period

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 rare disease patient organizations for support
  • 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
What imaging and tests confirm this type of tumor?
How will the seizures be treated or controlled?
Is monitoring or surgery recommended?

Quick facts

Symptoms usually startany time in life

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

Neurological

Also known as: dnet; dnt; dysembryoplastic neuroepithelial neoplasm; dysembryoplastic neuroepithelial tumor (morphologic abnormality); dysembryoplastic neuroepithelial tumour (morphologic abnormality)

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Dysembryoplastic neuroepithelial tumorGARD ID 10640 · 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 Dysembryoplastic neuroepithelial tumor.

Explore the Dysembryoplastic neuroepithelial tumor blog

Explore research for Dysembryoplastic neuroepithelial tumor

Explore actively recruiting Dysembryoplastic neuroepithelial tumor studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Dysembryoplastic neuroepithelial tumor 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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