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Living with Neuronopathy, distal hereditary motor, autosomal recessive 4

A rare inherited nerve and muscle condition with weakness that starts after normal early development and spreads over time.

Understanding Neuronopathy, distal hereditary motor, autosomal recessive 4

Neuronopathy, distal hereditary motor, autosomal recessive 4 is a rare inherited nerve and muscle condition that starts in childhood.

After normal motor development in early childhood, people have weakness in the muscles near the center of the body, with early weakness in the hands and feet. It can progress quickly to widespread weakness with tight joints, severe curved spine, a deep curve in the lower back, and breathing problems that may need help from a ventilator. Cranial nerve functions are normal. A milder form with slower progress has been reported.

Signs & symptoms

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

  • Weakness in muscles near the center of the body
  • Weakness in the hands and feet
  • Tight joints (contractures)
  • Severe curved spine (scoliosis)
  • Deep curve in the lower back
  • Breathing weakness over time

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 genetic specialists.

  3. Consider genetic testing

    Changes in PLEKHG5 are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Genetic specialists (geneticists)
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
Should we have genetic testing for the PLEKHG5 gene?
How should my child's breathing and spine be monitored?
Which therapies can help with movement?

Quick facts

Symptoms usually startChild
InheritanceAutosomal Recessive
GenesPLEKHG5

GARD lists changes in the PLEKHG5 gene. A child inherits a changed copy of the gene from each parent (autosomal recessive).

GeneticNeurological

Also known as: autosomal recessive distal spinal muscular atrophy type 4; autosomal recessive lower motor neuron disease with childhood onset; distal spinal muscular atrophy 4; distal spinal muscular atrophy type 4; dsma4; neuropathy, distal hereditary motor, autosomal recessive 4

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Neuronopathy, distal hereditary motor, autosomal recessive 4GARD ID 17101 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

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