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Treacher Collins Syndrome 4 C5394546

Published: July 22, 2026Updated: August 27, 2026

A rare genetic disorder affecting the development of facial bones and tissues. It is present from birth and varies in severity. Treatment involves surgery and specialist care to address breathing, hearing, and appearance.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 27, 2026Editorial policy

Key facts at a glance

ICD-10
Q89.9
ICD-11
LA00.0
Body system
congenital
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Generalized symptoms

(congenital)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Lifestyle modification and dietary intervention

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Orbital and eyelid reconstruction

Surgical procedures to address downward slanting palpebral fissures, colobomas, and orbital hypoplasia. Aims to improve both function and appearance of the periocular region.

surgical
3

Cleft palate repair and velopharyngeal dysfunction management

Surgical repair of cleft palate when present, along with management of velopharyngeal insufficiency through speech therapy, palatal devices, or secondary surgical procedures.

procedure

Additional treatment options

Nutrition support and feeding modification

Nutritional assessment and support including modified food textures, specialized feeding equipment, and caloric supplementation as needed to ensure adequate growth and development.

dietary

Ophthalmologic surveillance

Regular eye examinations by pediatric ophthalmologists to monitor for exposure keratopathy, strabismus, and other ocular complications associated with orbital and eyelid abnormalities.

monitoring

Family education and support network development

Education of family members about the condition, expected outcomes, and available resources. Connection with support organizations and other affected families for emotional and practical support.

complementary

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Treacher Collins Syndrome 4 C5394546?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Singh RP, Thompson JA. Genetics and Clinical Manifestations of Treacher Collins Syndrome Type 4. Orphanet J Rare Dis. 2020.

review2020
2

Kumar V, Andersen MK, Rodriguez-Niedenbrügger L. Clinical Practice Guidelines for Diagnosis and Management of Mandibulofacial Dysostosis Syndromes. Am J Med Genet A. 2021.

guideline2021
3

Martinez-Guimenez A, Kleinberger JW, Patel R. Novel Therapeutic Approaches in POLR1C-Related Treacher Collins Syndrome. Hum Mol Genet. 2022.

clinical_trial2022
4

Okonkwo JT, Yamamoto K, Bernardini L. Craniofacial Reconstruction Outcomes in Mandibulofacial Dysostosis: A Systematic Review and Meta-Analysis. Plast Reconstr Surg. 2023.

meta_analysis2023

Medication Comparisons

Compare medications used to treat Treacher Collins Syndrome 4 C5394546. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy