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Published on: February 28, 2025
Bronchogenic cyst: an uncommon cause of congenital lobar emphysema
Monia Khemiri1, Monia Ouederni, Fafany Ben Mansour
1Medicine A Department, Children's Hospital of Tunis, Bab Saadoun 1007, Jabbari Tunis, Tunisia.
Insights
Congenital lobar emphysema (CLE) in infants can be caused by a subcarinal bronchogenic cyst compressing the airway. This case highlights the importance of thorough diagnostic evaluation to identify the underlying cause of persistent respiratory distress.
Area of Science:
- Pediatric Pulmonology
- Thoracic Surgery
- Medical Imaging
Background:
- Congenital lobar emphysema (CLE) is a rare neonatal respiratory condition.
- Early diagnosis and surgical intervention are crucial for favorable outcomes.
Observation:
- A 1-month-old infant presented with respiratory distress due to left upper lobe CLE.
- Following lobectomy, relapse occurred, prompting further investigation.
- Imaging revealed a mediastinal cystic mass compressing the left bronchus.
Findings:
- A subcarinal bronchogenic cyst was identified as the cause of CLE in both left lobes.
- Histological examination confirmed the diagnosis of a bronchogenic cyst.
- Diagnostic delay was noted as a significant factor.
Implications:
- Bronchogenic cysts should be considered in the differential diagnosis of recurrent or persistent CLE.
- Comprehensive imaging and diagnostic workup are essential for identifying extrinsic airway compression.
- Timely diagnosis and management of bronchogenic cysts can prevent severe respiratory complications in neonates.
Abstract:
We report a case of a 1-month-old boy who has developed respiratory distress. Chest X-ray and CT scan showed over distension of the left upper lobe and a mediastinal shift in favour of congenital lobar emphysema (CLE) of the left upper lobe. One month after uneventful lobectomy, he was readmitted at hospital for another episode of respiratory distress. Chest radiography revealed relapse of compressive emphysema in the remaining left lobe. Gastro oesophageal transit and MRI were performed, which have shown a mediastinal cystic mass. Accordingly, the patient underwent thoracotomy. Surgical examination found a subcarinal bronchogenic cyst which compressed the main left bronchus, causing the CLE of both upper and lower left lobes. Histological examination of removed cyst confirmed these data. Authors discuss causes of diagnostic delay.
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