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Updated: Sep 26, 2026
Protocol and Guidelines for Point-of-Care Lung Ultrasound in Diagnosing Neonatal Pulmonary Diseases Based on International Expert Consensus
Published on: March 6, 2019
Left pulmonary artery sling presenting as unilateral echogenic lung on 20-week detailed antenatal ultrasound
Malcolm G Semple1, Leanne Bricker, Ben N J Shaw
1Institute of Child Health, University of Liverpool, Alder Hey, Eaton Road, Liverpool, L12 2AP, UK. m.g.semple@liv.ac.uk
Background:
We report the first case of left pulmonary artery sling (LPAS) presenting as unilateral echogenic lung at a routine 20-week antenatal US examination. The infant had minimal symptoms at delivery, but developed an oxygen requirement and respiratory distress from day 10 of postnatal life. Antenatal US and antenatal MRI indicated an intrathoracic anomaly, so permitting definitive investigations in the neonatal period using CT, MRI and helical-CT-acquired virtual bronchoscopy. The infant successfully underwent corrective surgery.
Reason To Report:
Antenatal ultrasound detected an anomaly permitting definitive diagnostic investigations to be performed shortly after birth. Investigations were completed before significant signs and symptoms developed.
What Was Unique:
This is the first report of antenatally detected unilateral echogenic lung leading to the diagnosis of pulmonary artery sling.
Ramifications Of This Report:
This report provides further evidence that improvements in antenatal ultrasound and MRI permit earlier diagnosis and improve patient management.
