Extralobar sequestration at 32 weeks of gestation

Ultrasound demonstrates a left lower lobe echogenic mass (A) with a systemic feeding vessel demonstrated with Doppler examination (B). A subtle high signal mass (arrow) is noted on magnetic resonance coronal (C) and sagittal (D) images. A linear low signal line through the mass represents a systemic feeding vessel. Postnatal CT images (E) axial and (F) sagittal reformatted image at 1 month of age demonstrate an enhancing mass (arrow) in left lower lobe region, abutting diaphragm with a feeding vessel originating from the descending aorta. A draining vein was identified coursing into the portal vein.