Pulmonary sequestration - intralobar

Case contributed by Thuấn Nguyễn Hoàng
Diagnosis almost certain


General examination. No clinical symptom.

Patient Data

Age: 40 years
Gender: Male



2 round opacities overlying the left cardiac border. They have no silhouette with the left cardiac border, left diaphragm or descending aorta suggesting the left lower lobe location. 

CT contrast


Mass in the left lower lobe with soft tissue density (26 HU) , with defined border and peripheral calcification. No visceral pleura around the mass.

The mass does not enhance in the arterial phase. Two feeding branches from descending aorta supply the mass, and the venous drainage is via the left pulmonary veins.

Case Discussion

These findings are typical for intralobar sequestration in the base of the left lower lobe. Carefully searching for the abnormal artery and veins of the mass can differentiate sequestration from other causes.

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