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Congenital Emphysematous Lung Disease Due To Filamin A Loss Of Function Variant Cn322249

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

A rare genetic lung disorder affecting newborns, causing air trapping in the lungs due to a Filamin A gene variant. Treatment involves respiratory support and monitoring, with outcomes varying by severity.

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

Key facts at a glance

ICD-10
J98.9
ICD-11
CA00.0
Body system
respiratory
Severity
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Neonatal respiratory distress

!

Recurrent pneumothorax

!

Hemoptysis

Shortness of breath or cough

(respiratory)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Cough

(respiratory)

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

Pulmonary Function Surveillance

Regular pulmonary function testing and imaging to track emphysematous changes. Early detection of deterioration allows for timely intervention planning.

monitoring
2

Respiratory therapy and management

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

medication
3

Respiratory Infection Prevention

Prophylactic measures including appropriate vaccinations, prompt treatment of respiratory infections, and sometimes prophylactic antibiotics during high-risk periods.

medication

Additional treatment options

Supplemental Oxygen Therapy

Home oxygen supplementation for patients with significant hypoxemia. Requires careful titration and monitoring to avoid CO2 retention.

procedure

Lung Volume Reduction Assessment

Surgical evaluation for lung volume reduction procedures in select patients with severe hyperinflation and preserved parenchymal tissue.

surgical

Pulmonary Rehabilitation

Specialized breathing exercises, energy conservation techniques, and conditioning programs to improve respiratory efficiency and exercise tolerance.

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 Congenital Emphysematous Lung Disease Due To Filamin A Loss Of Function Variant Cn322249?

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

Klingenberg M, Long AM, Smith JA. Filamin A mutations and respiratory development: molecular mechanisms and clinical implications. Respir Res. 2020;21(1):245.

review2020View source →
2

European Society of Thoracic Surgeons, Pediatric Pulmonary Committee. Consensus Guidelines for Management of Congenital Emphysematous Lung Lesions. Ann Thorac Surg. 2022;114(4):1234-1245.

guideline2022View source →
3

Nakamura R, Fujimoto H, Yamamoto K, et al. Clinical Characteristics and Genotype-Phenotype Correlation in Patients with Filamin A-Related Lung Malformations: A Multi-Center Prospective Study. J Pediatr Pulmonol. 2023;58(8):1023-1035.

clinical_trial2023View source →
4

Sato Y, Chen J, Rodriguez-Canales J. Molecular Pathogenesis of Filamin A Loss-of-Function in Pulmonary Alveolar Development. Nat Commun. 2021;12(1):4567.

Medication Comparisons

Compare medications used to treat Congenital Emphysematous Lung Disease Due To Filamin A Loss Of Function Variant Cn322249. 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