CTICasesRecurrent Infected Intralobar Pulmonary Sequestration
Imaging findings
Serial CTs over several years in a patient presenting with left lower lobe infection show an area of atelectatic, non-enhancing lung containing small cystic spaces and abnormal-appearing airways, fed by a systemic arterial vessel arising from the descending thoracic aorta; over time the area became progressively more consolidated and then more cavitary with recurrent infection.
Key takeaways
These findings are diagnostic of an intralobar pulmonary sequestration, which was ultimately resected because of recurrent infection related to its abnormal architecture preventing adequate clearance. The presence of cystic spaces raised consideration for hybrid features with a congenital pulmonary airway malformation, though no findings of associated bronchial atresia were identified.
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