CTICasesInfected intralobar pulmonary sequestration
Imaging findings
CT scan with contrast in a young patient shows a large, complex, multiloculated fluid-filled collection with air-fluid levels involving a large portion of the left lower lobe, with associated pleural thickening. Three distinct congenital systemic arterial feeders are seen arising from the aorta to supply the lesion.
Key takeaways
Intralobar pulmonary sequestrations can become infected and present with complex cystic components and air-fluid levels. Demonstrating systemic arterial supply from the aorta on contrast-enhanced CT is diagnostic and critical for surgical planning to avoid inadvertent arterial injury.
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