CTICasesSubcarinal Bronchogenic Cyst
Imaging findings
Chest radiograph shows an abnormal opacity containing air in the azygoesophageal recess. Chest CT reveals a multilocular, air-filled and fluid-filled cyst within the subcarinal space, projecting into the azygoesophageal recess. No communication with the tracheobronchial tree is seen on bronchoscopy.
Key takeaways
Bronchogenic cysts are congenital foregut duplication cysts that most commonly occur in the subcarinal region. While typically fluid-filled, they can contain air due to a microscopic communication with the airways or esophagus, which increases the susceptibility of the cyst to recurrent infections and necessitates surgical resection.
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