Imaging features are consistent with intralobar pulmonary sequestration. CT showed heterogeneous large consolidation in posterior basal segment of left lower lobe, which was supplied by two good caliber systemic arterial branches from distal descending thoracic aorta and subsequent venous drainage into left inferior pulmonary vein. These features are consistent with intralobar pulmonary sequestration. 

Intralobar pulmonary sequestration has systemic arterial supply and pulmonary venous drainage whereas extralobar pulmonary sequestration has systemic venous drainage.