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Published on: January 20, 2010
Recurrent severe lower respiratory tract infections in a child with abnormal tracheal morphology
Serena Panigada1, Oliviero Sacco, Donata Girosi
1Pulmonary Disease Unit, Giannina Gaslini Research Institute, University of Genova, Genoa, Italy.
Insights
Recurrent respiratory infections in children may signal airway abnormalities. This case highlights a rare tracheal bronchus and anomalous lobar bronchus causing severe hypoxia.
Area of Science:
- Pediatric Pulmonology
- Medical Imaging
- Anatomical Pathology
Background:
- Recurrent respiratory infections and severe hypoxia in young children warrant investigation for underlying causes.
- Airway structural abnormalities can present atypically, mimicking common childhood respiratory illnesses.
- Early identification of congenital airway anomalies is crucial for timely intervention.
Observation:
- A 24-month-old boy experienced recurrent severe post-viral wheezing and hypoxia.
- Previous diagnoses included respiratory syncytial virus (RSV)-induced bronchiolitis and gastro-esophageal reflux.
- Fiberoptic bronchoscopy revealed abnormal distal tracheal morphology with four openings.
Findings:
- Computed tomography (CT) scans confirmed a right tracheal bronchus.
- An anomalous upper lobar bronchus was identified originating at the major carina.
- These findings indicate complex congenital airway malformations.
Implications:
- Congenital airway anomalies should be considered in pediatric cases of unexplained recurrent respiratory infections and hypoxia.
- Advanced imaging like CT bronchography is essential for diagnosing such anatomical variations.
- Accurate diagnosis facilitates appropriate management and improves patient outcomes.
Abstract:
Localized recurrent respiratory infections, leading to severe hypoxia in young children without immunological abnormalities or other risk factors, should raise the suspicion of airway structural abnormalities. In a 24-month-old boy, with recurrent severe post-viral wheezing and a history of RSV-induced bronchiolitis and gastro-esophageal reflux, fiberoptic bronchoscopy demonstrated an abnormal morphology of the distal portion of the trachea, ending in four openings. Computed tomography (CT) scans demonstrated the presence of a right tracheal bronchus and an anomalous upper lobar bronchus, originating at the level of the major carina.
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