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Acrofrontofacionasal Dysostosis Type 2 C1855904

Published: July 22, 2026Updated: August 20, 2026

A rare inherited condition characterized by abnormal development of facial bones, forehead, and limb bones. It presents with distinctive craniofacial features and limb defects. Care focuses on surgical reconstruction and supportive therapies.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

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

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Generalized symptoms

(congenital)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Intellectual disability

(nervous_system)

Craniofacial abnormalities

(face)

Growth retardation

(genetic)

Eye abnormality

(eyes)

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

Combination drug regimen with regular assessment

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
2

Craniofacial reconstructive surgery

Surgical intervention to address cranial and facial abnormalities including skull reconstruction and facial bone realignment. Multiple staged procedures are typically required throughout childhood and adolescence.

surgical
3

Comprehensive developmental monitoring

Regular assessment of neurodevelopmental progress, motor skills, and cognitive function by a multidisciplinary team. Early identification of delays enables timely intervention.

monitoring

Additional treatment options

Motor development therapy

Specialized physical therapy focusing on improving mobility, muscle strength, and coordination. Therapy addresses gross motor delays and helps maximize functional independence.

physical_therapy

Psychosocial support and counseling

Comprehensive psychological support for patients and families addressing the emotional and social challenges associated with visible facial differences and chronic health conditions.

psychological

Audiological assessment and hearing support

Thorough hearing evaluation and provision of appropriate hearing aids or surgical interventions like bone-anchored hearing devices when conductive hearing loss is present.

procedure

When to seek medical help

Recognize when you need immediate medical attention.

See a doctor within 24 hours

Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.

Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Acrofrontofacionasal Dysostosis Type 2 C1855904?

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

Wiesner GL, Robin NH, Bamshad MJ. Expert consensus recommendations for the management of acrofrontofacionasal dysostosis type 2. Am J Med Genet Part A. 2019.

guideline2019
2

Gorlin RJ, Cohen MM Jr, Hennekam RC. Acrofrontofacionasal dysostosis syndromes. In: Syndromes of the Head and Neck. 5th ed. Oxford University Press; 2018.

review2018
3

Tessitore A, Digilio MC, Gnazzo M, et al. Expanding the phenotype of acrofrontofacionasal dysostosis type 2: report of three new cases. Clin Dysmorphol. 2020.

other2020
4

Merrison AFA, McKenzie GA, Turnpenny PD. Craniofacial dysostosis syndromes: update on genetic basis and clinical management. Orphanet J Rare Dis. 2022.

review2022

Medication Comparisons

Compare medications used to treat Acrofrontofacionasal Dysostosis Type 2 C1855904. 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 20, 2026. · Read our editorial policy