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Living with Joubert syndrome with Jeune asphyxiating thoracic dystrophy

A rare genetic condition that combines Joubert syndrome brain features with the narrow chest and short bones of Jeune syndrome.

Understanding Joubert syndrome with Jeune asphyxiating thoracic dystrophy

Joubert syndrome with Jeune asphyxiating thoracic dystrophy is a rare genetic condition that combines features of two conditions.

It has the classic features of Joubert syndrome: low muscle tone, unusual breathing and eye movements, balance problems, and thinking difficulties. It also has the bone differences of Jeune syndrome: short ribs, a long, narrow chest that can make breathing hard, short limbs, short height, and extra fingers or toes. Cysts in the kidneys, liver scarring, and retinal disease can also occur. It is seen in newborns.

Signs & symptoms

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

  • Low muscle tone
  • Fast breathing (tachypnea)
  • Small cerebellum
  • Eye movement difficulty (oculomotor apraxia)
  • Slow weight gain (failure to thrive)
  • Kidney differences

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, eye disease specialists and genetic specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

  4. Connect with expert centers

    National Ataxia 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); Eye disease specialists (ophthalmologists); Genetic specialists (geneticists)
Expert care
Expert lists: National Ataxia 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 Joubert Syndrome & Related Disorders 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
How is my child's breathing monitored and supported?
How often should kidneys, liver, and eyes be checked?
Can genetic testing find the gene change in our family?

Quick facts

Symptoms usually startNewborn
InheritanceAutosomal Recessive

GARD says changes in genes (also called variants) cause this condition. It is autosomal recessive, meaning a child inherits a changed copy of the gene from each parent.

GeneticRespiratoryNeurological

Also known as: jbts with jatd; joubert syndrome with jatd; joubert syndrome with jatd (jeune asphyxiating thoracic dystrophy)

Patient organizations

Source: NIH GARD · Joubert syndrome with Jeune asphyxiating thoracic dystrophyGARD ID 17637 · 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 Joubert syndrome with Jeune asphyxiating thoracic dystrophy.

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