Presentation
Incidental finding on chest x-ray. Patient referred for CT chest.
Patient Data
Age: 35 years
Gender: Male
From the case:
Intralobar sequestration
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Well defined lobulated homogeneously hypodense cystic lesion with a thin enhancing wall in the posterobasal segment of the right lower lobe. There is an arterial branch arising from the descending thoracic aorta just above the level of aortic hiatus of the diaphragm which is seen to supply the lesion. Venous drainage is via the right inferior pulmonary vein. Lung window images show the presence of air trapping in the adjacent lung parenchyma.
Case Discussion
An intraparenchymal lung lesion which derives its blood supply from the aorta (systemic artery) confirms the diagnosis of an intralobar pulmonary sequestration.
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