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Updated: May 15, 2026

Protocol and Guidelines for Point-of-Care Lung Ultrasound in Diagnosing Neonatal Pulmonary Diseases Based on International Expert Consensus
Published on: March 6, 2019
Congenital cystic adenomatoid malformation presenting as lung abscess in a child
K Jagadish Kumar1, M G Anilkumar, Y L Shivamurthy
1Department of Pediatrics, JSS Medical College, Mysore, India. jagdishmandya@gmail.com
Insights
Congenital cystic adenomatoid malformation (CCAM) can present atypically in older children. This case highlights CCAM mimicking empyema in a 3-year-old, requiring surgical intervention.
Area of Science:
- Pediatric Pulmonology
- Thoracic Surgery
- Medical Imaging
Background:
- Congenital cystic adenomatoid malformation (CCAM) involves hamartomatous cystic lung lesions with abnormal bronchiolar structures.
- Typically presents with neonatal respiratory distress or early childhood infections, diagnosed before age two.
Observation:
- A 3-year-old male presented with symptoms mimicking empyema, specifically a lung abscess.
- This atypical presentation delayed the diagnosis of CCAM.
Findings:
- The patient was diagnosed with congenital cystic adenomatoid malformation.
- Surgical lobectomy was performed to treat the lung abscess caused by CCAM.
Implications:
- CCAM can present with unusual clinical manifestations in older children, challenging early diagnosis.
- Prompt surgical management, such as lobectomy, is effective for CCAM presenting as lung abscess.
- Highlights the importance of considering rare diagnoses in pediatric respiratory conditions.
Abstract:
Congenital cystic adenomatoid malformation composes of hamartomatous cystic lung lesions characterised by the presence of abnormal bronchiolar structures of varying sizes or distribution. In most of the cases, respiratory distress occurs during the neonatal period, and in about 90% of patients, congenital cystic adenomatoid malformation is diagnosed before the age of two years due to respiratory infection. We describe a case of congenital cystic adenomatoid malformation presenting as lung abscess in a 3-year six months old male clinically mimicking empyema. He undergone lobectomy and doing well in the follow-up.
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