CTICasesInfected congenital pulmonary airway malformation (CPAM type I)
Imaging findings
Chest radiograph and CT show a large, thin-walled, air-filled cavity with a fluid level in the right lower lobe, surrounded by smaller cystic spaces and centrilobular nodules representing endobronchial spillage.
Key takeaways
CPAMs are rare congenital cystic lung lesions that can present in young adults as recurrent or complicated infections. Once infected, they are prone to recurrence and are typically managed with surgical resection.
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