CTICasesInfected Bronchogenic Cyst
Imaging findings
CT chest in a 17-year-old shows a shaggy, thick-walled, multi-loculated cystic mass in the lower mediastinum extending into the adjacent lung parenchyma, associated with surrounding consolidative changes. Pathology confirmed a benign bronchogenic cyst with signs of secondary infection.
Key takeaways
Bronchogenic cysts are congenital foregut duplication cysts. While often asymptomatic and fluid-filled, they can become infected, presenting with fever and chest pain. Infection leads to shaggy wall thickening and adjacent parenchymal consolidation, which can mimic a primary lung abscess or congenital pulmonary airway malformation (CPAM).
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