Intralobar Sequestration Presenting as Pneumonia

Recurrent Pneumonia in a Young Adult

A. This chest radiograph taken while the patient was asymptomatic shows a thin-walled, cystic lesion in the right lower lobe.

Identify the lesion



B. Axial CT taken during a pneumonic episode, shows a heterogeneous right lower lobe mass in the same region as the cystic lesion shown above.

Because of the history of recurrent pneumonia in a cystic lesion, an angiogram was performed. It showed an anomalous, systemic artery supplying the lesion. Resection confirmed an intralobar sequestration.

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Cystic lesion