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Living with Orofaciodigital syndrome type 6

A very rare form of Joubert syndrome with brain features plus mouth and face differences and often extra fingers or toes.

Understanding Orofaciodigital syndrome type 6

Orofaciodigital syndrome type 6 is a very rare subtype of Joubert syndrome that adds mouth, face, and finger or toe differences.

It combines the brain and nervous system features of Joubert syndrome with mouth and face differences and often extra fingers or toes (polydactyly). 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)
  • Low muscle tone
  • Delayed development overall
  • Cleft palate and lobed tongue
  • Feeding difficulties in infancy
  • Slow growth

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, ear, nose, and throat specialists and eye disease specialists.

  3. Consider genetic testing

    Changes in CPLANE1 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

    National Ataxia Foundation and World Craniofacial 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); Ear, nose, and throat specialists (otolaryngologists); Eye disease specialists (ophthalmologists)
Expert care
Expert lists: National Ataxia Foundation, World Craniofacial 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
Which Joubert syndrome checks, such as kidney and eye exams, are needed?
What supports can help with feeding and development?
Would CPLANE1 genetic testing help our family?

Quick facts

Symptoms usually startNewborn and as an Infant
InheritanceAutosomal Recessive, X-Linked
GenesCPLANE1

Changes in the CPLANE1 gene cause this condition. GARD lists autosomal recessive and X-linked inheritance.

GeneticNeurological

Also known as: central polydactyly cleft lip/palate or lingual lump and psychomotor retardation; joubert syndrome with oral-facial-digital syndrome; joubert syndrome with oro-facial-digital syndrome; joubert syndrome with orofacialdigital anomalies; joubert syndrome with orofaciodigital defect; ofd6

Patient organizations

Source: NIH GARD · Orofaciodigital syndrome type 6GARD ID 4412 · 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 Orofaciodigital syndrome type 6.

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