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Rnu4atac Spectrum Disorder Cn377746

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

A rare genetic disorder affecting brain development, growth, and bone structure. Affected individuals require lifelong multidisciplinary support.

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
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

Microcephaly

(congenital)

Growth retardation

(congenital)

Facial dysmorphism

(congenital)

Congenital heart defect

(congenital)

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

Evidence-based pharmacological treatment

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

medication
2

JAK Inhibitor Therapy

JAK inhibitors are considered first-line targeted therapy for RNU4ATAC spectrum disorder, addressing the underlying interferon pathway activation. Treatment decisions should involve specialist consultation.

medication
3

Anti-inflammatory Management

Management of systemic inflammation through anti-inflammatory medications to control symptoms and prevent end-organ damage, often in combination with JAK inhibitor therapy.

medication

Additional treatment options

Structural Abnormality Correction

Surgical intervention may be necessary for specific structural abnormalities associated with RNU4ATAC spectrum disorder, including cardiac or skeletal manifestations requiring orthopedic intervention.

surgical

Multi-system Surveillance Program

Comprehensive monitoring program tracking cardiac, neurological, ophthalmologic, and developmental parameters with regular specialist assessments across affected systems.

monitoring

Developmental and Rehabilitation Therapy

Early intervention physical and occupational therapy to address motor delays, improve functional abilities, and maximize developmental potential in affected individuals.

physical_therapy

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 Rnu4atac Spectrum Disorder Cn377746?

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

Merico D, Roifman CM. RNU4ATAC Spectrum Disorder: Clinical and Molecular Features. Clin Genet. 2020.

review2020
2

Ebrahimi-Fakhari D, Chong K, Roifman CM, et al. Prenatal and Postnatal Phenotype of RNU4ATAC Mutations. Hum Mutat. 2019.

clinical_trial2019
3

Wang L, Nelson-Erly M, Riedel S, et al. Management of Immunodeficiency in RNU4ATAC Spectrum Disorder. J Clin Immunol. 2022.

guideline2022
4

Hastings ML, Kole J, Maitra R. Molecular Mechanisms of RNU4ATAC Gene Dysfunction in Rare Developmental Disorders. Nat Rev Genet. 2021.

review2021

Medication Comparisons

Compare medications used to treat Rnu4atac Spectrum Disorder Cn377746. 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