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Living with Early-onset calcifying leukoencephalopathy-skeletal dysplasia

A rare genetic condition that affects the brain and bones from childhood, with calcium deposits in the brain and denser bones.

Understanding Early-onset calcifying leukoencephalopathy-skeletal dysplasia

Early-onset calcifying leukoencephalopathy-skeletal dysplasia is a rare genetic condition that affects the brain's white matter and the bones.

It begins in childhood. Brain scans may show calcium deposits, extra fluid, and differences in the structure of the brain. The bones can be denser than usual, in the skull, pelvis, and spine, with flattened spine bones and long bones that are shaped differently. Seizures and muscle stiffness can occur.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Calcium deposits in the brain
  • Extra fluid in the brain (hydrocephalus)
  • Seizures starting in part of the brain
  • Muscle stiffness (spasticity)
  • Denser bones in the skull and spine
  • Flattened spine bones (platyspondyly)

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 bone and joint specialists, brain and nervous system specialists and genetic specialists.

  3. Consider genetic testing

    Changes in CSF1R 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

    United Leukodystrophy Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Bone and joint specialists (orthopedists or orthopedic surgeons); Brain and nervous system specialists (neurologists); Genetic specialists (geneticists)
Expert care
Expert lists: United Leukodystrophy 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 United Leukodystrophy Foundation
  • 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
Would genetic testing for the CSF1R gene help our family?
What brain imaging and monitoring does my child need?
How should seizures and stiffness be treated?

Quick facts

Symptoms usually starta variety of ages
InheritanceAutosomal Recessive
GenesCSF1R

GARD says changes in the CSF1R gene cause this condition. It is autosomal recessive, meaning a child inherits a changed copy of the gene from each parent.

GeneticNeurological

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Early-onset calcifying leukoencephalopathy-skeletal dysplasiaGARD ID 22246 · 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 Early-onset calcifying leukoencephalopathy-skeletal dysplasia.

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