CTICasesHybrid Congenital Pulmonary Airway Malformation (CPAM) and Sequestration with Recurrent Infection
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Imaging findings
Initial radiograph showed right lower lung consolidation with a fluid level and cystic airspace. Follow-up radiograph showed resolution of consolidation but a subtle lucent lesion. CT revealed several fluid-filled cystic spaces, consolidation, and centrilobular nodules in the affected area. A systemic artery was identified supplying the lesion, originating from the aorta, indicating a sequestration component. The presence of cystic spaces is characteristic of a CPAM.
Key takeaways
This case demonstrates a hybrid lesion combining features of congenital pulmonary airway malformation (CPAM) and pulmonary sequestration. Such lesions are prone to recurrent infections and often require surgical resection once the infection clears. Pre-operative MRA of the chest is crucial to identify all systemic arterial supply.
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