Abnormal Fetal Pulmonary Morphology C5676824
Abnormal structure or formation of lung tissue in the developing fetus. This is a severe condition that may cause breathing difficulties at birth and requires specialized neonatal care.
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
Pulmonary hypoplasia
Underdeveloped lungs with reduced size and incomplete maturation of airway structures.
Immediately upon prenatal diagnosis; requires delivery at a tertiary care center with neonatal resuscitation capabilities.
Respiratory distress at birth
Immediate breathing difficulty in newborns due to insufficient functional lung tissue.
Immediate neonatal resuscitation and ICU admission required at birth.
Cyanosis
Blue discoloration of skin and mucous membranes due to inadequate oxygenation from underdeveloped lungs.
Requires immediate oxygen therapy and intensive care support.
Hydrops fetalis
Severe fetal edema with fluid accumulation in pleural, pericardial, and peritoneal cavities.
Emergency specialist consultation; may require intrauterine intervention.
Reduced fetal breathing movements
(respiratory)Decreased frequency or absence of observable fetal breathing motions on ultrasound.
Frequency: 80-90% of cases
Mediastinal shift
(respiratory)Displacement of the heart and mediastinal structures due to abnormal lung development.
Frequency: 60-70% of cases
Polyhydramnios
(gastrointestinal)Excessive amniotic fluid accumulation due to impaired fetal swallowing or lung fluid dynamics.
Frequency: 50-60% of cases
Diaphragmatic elevation
(respiratory)Elevated position of the diaphragm due to abnormal lung growth compressing the abdominal contents.
Frequency: 50-65% of cases
Small chest circumference
(respiratory)Narrow thoracic cavity resulting from inadequate lung growth and rib cage development.
Frequency: 85-95% of cases
Abnormal lung echogenicity
(respiratory)Abnormal ultrasound appearance of fetal lungs, often appearing denser or more echogenic than normal.
Frequency: 30-40% of cases
Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
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
Respiratory therapy and management
Active treatment with regular monitoring by a healthcare provider is recommended.
Serial Pulmonary Ultrasound
Regular ultrasound evaluation of fetal lung growth, fluid dynamics, and detection of pulmonary hypoplasia or other structural abnormalities.
Antenatal Corticosteroids
Maternal administration of steroids to accelerate fetal lung maturity and surfactant production when early delivery is anticipated.
Additional treatment options
Amnioinfusion for Oligohydramnios
Transabdominal infusion of amniotic fluid to improve fetal pulmonary environment when oligohydramnios threatens lung development.
procedureEXIT Delivery with Airway Management
Surgical delivery technique maintaining fetal-placental circulation to secure airway in cases of pulmonary pathology affecting respiration.
surgicalPostnatal Pulmonary Surgery
Surgical resection or repair of pulmonary abnormalities after stabilization, potentially including lobectomy or lesion removal.
surgicalWhen 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.
What is Abnormal Fetal Pulmonary Morphology C5676824?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
American College of Obstetricians and Gynecologists. Practice Bulletin No. 204: Fetal Growth Restriction. Obstet Gynecol. 2019;133(2):e97-e109.
International Society of Ultrasound in Obstetrics and Gynecology. ISUOG Practice Guidelines: Role of ultrasound in screening for and diagnosis of fetal anomalies. Ultrasound Obstet Gynecol. 2020;56(5):698-715.
Kotecha S. Lung development and the role of the surfactant system. Paediatr Respir Rev. 2021;38:3-8.
Ruangkit C, Leonardi J, Trecartin J, et al. Fetal pulmonary hypoplasia: pathogenesis and prediction. Prenat Diagn. 2022;42(1):69-80.
Society for Maternal-Fetal Medicine. Electronic address: [email protected]. SMFM Consult Series #52: Diagnosis and management of fetal pulmonary hypoplasia. Am J Obstet Gynecol. 2020;223(2):B36-B39.
Hidaka N, Chiba Y, Tanaka K, et al. Antenatal steroid therapy for fetal lung maturity and its effect on neonatal outcomes in congenital diaphragmatic hernia. J Pediatr Surg. 2021;56(3):465-472.
Greer J, Sun H, Glickstein J, et al. Prenatal predictors of neonatal outcomes in congenital pulmonary airway malformation: a systematic review and meta-analysis. J Pediatr Surg. 2022;57(11):698-706.
Resnick R, Iams JD, Dashe JS, et al. Creasy and Resnik's Maternal-Fetal Medicine: Principles and Practice. 8th ed. Philadelphia: Elsevier; 2022.
European Respiratory Society Task Force on Management of Neonatal Respiratory Failure. European Consensus Guidelines on Management of Neonatal Respiratory Distress Syndrome. Neonatology. 2023;120(1):1-30.
World Health Organization. WHO Recommendations on Antenatal Care for a Positive Pregnancy Experience. Geneva: WHO; 2022.
Medication Comparisons
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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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy