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Living with Neuronal ceroid lipofuscinosis 7

A type of NCL (CLN7) that starts between ages 2 and 7 with vision loss and clumsiness, followed by seizures and loss of skills.

Understanding Neuronal ceroid lipofuscinosis 7

Neuronal ceroid lipofuscinosis 7 (CLN7 disease) is an inherited condition that mainly affects the nervous system.

Signs and symptoms typically begin between ages 2 and 7. The first features are usually vision loss and movement problems that might seem like clumsiness. Others include muscle twitches, poor coordination, recurrent seizures, and speech problems. Thinking and motor skills, such as sitting and walking, decline with age. It is one type of NCL, also known as Batten disease.

Signs & symptoms

GARD doesn't list a detailed symptom list, but the summary describes these features:

  • Vision loss
  • Clumsiness and movement problems
  • Muscle twitches (myoclonus)
  • Poor coordination (ataxia)
  • Seizures (epilepsy)
  • Speech 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, eye disease specialists, genetic specialists and seizure and epilepsy specialists.

  3. Consider genetic testing

    Changes in MFSD8 are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

  4. Connect with expert centers

    BDSRA Foundation and Epilepsy Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Eye disease specialists (ophthalmologists); Genetic specialists (geneticists); Seizure and epilepsy specialists (epileptologist)
Expert care
Expert lists: BDSRA Foundation, Epilepsy 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 BDSRA 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
Should we have genetic testing for the MFSD8 gene?
Which treatments can help with seizures and twitches?
Which supports can help with vision and learning?

Quick facts

Symptoms usually startInfant
InheritanceAutosomal Recessive
GenesMFSD8

GARD lists changes in the MFSD8 gene. A child inherits a changed copy of the gene from each parent (autosomal recessive).

GeneticNeurologicalInherited MetabolicLysosomal Storage

Also known as: ceroid lipofuscinosis, neuronal, type 7; cln7; cln7 disease; mfsd8 neuronal ceroid lipofuscinosis; mfsd8-related neuronal ceroid-lipofuscinosis; neuronal ceroid lipofuscinosis caused by mutation in mfsd8

Patient organizations

Source: NIH GARD · Neuronal ceroid lipofuscinosis 7GARD ID 1220 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

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