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Living with Olivopontocerebellar atrophy-deafness syndrome

A rare genetic condition starting in infancy, with shrinking of parts of the brain, hearing loss, and speech problems.

Understanding Olivopontocerebellar atrophy-deafness syndrome

Olivopontocerebellar atrophy-deafness syndrome is a very rare condition with loss of cells in parts of the brain, hearing loss, and speech problems.

It starts in infancy and has been described in fewer than 15 children. Most cases happened by chance, and autosomal recessive inheritance was suggested in three. GARD lists newborn and infant years as the usual onset.

Signs & symptoms

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

  • Trouble coordinating movement (ataxia)
  • Hearing impairment
  • Quick, involuntary eye movements (nystagmus)
  • Increased reflexes
  • Shrinking of the brain's outer layer (cortical atrophy)
  • Enlarged fluid spaces in the brain (ventriculomegaly)

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 ear, nose, and throat 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
Ear, nose, and throat specialists (otolaryngologists); 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 National Ataxia 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
Which hearing tests and supports are right for my child?
Which therapies can help with movement and speech?
Would genetic testing help our family?

Quick facts

Symptoms usually startNewborn and as an Infant
InheritanceAutosomal Recessive

GARD says changes in genes cause this condition. Most cases were sporadic, and autosomal recessive inheritance was suggested in three cases.

Genetic

Also known as: olivopontocerebellar atrophy and deafness; olivopontocerebellar atrophy co-occurrent with sensorineural hearing loss; olivopontocerebellar atrophy-hearing loss syndrome

Patient organizations

Source: NIH GARD · Olivopontocerebellar atrophy-deafness syndromeGARD ID 4070 · 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 Olivopontocerebellar atrophy-deafness syndrome.

Explore the Olivopontocerebellar atrophy-deafness syndrome blog

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