Chest radiograph of infant with severe meconium aspiration syndrome showing typical “white out” appearance 24 hours after institution of venoarterial extracorporeal membrane oxygenation support. Chest radiograph of infant with severe meconium aspiration syndrome showing typical “white out” appearance 24 hours after institution of venoarterial extracorporeal membrane oxygenation support. The arterial cannula (A) has been inserted into the right common carotid artery, with its tip in the aortic arch; the venous cannula (B) has been inserted into the right internal jugular vein and its tip (C) lies in the right atrium. P J DAVIS, and L S SHEKERDEMIAN Arch Dis Child Fetal Neonatal Ed 2001;84:F1-F3 Copyright © BMJ Publishing Group Ltd & Royal College of Paediatrics and Child Health. All rights reserved.