This infant was born following a diamnionic–monochorionic twin pregnancy and was the donor in a twin-to-twin transfusion. The mother was hospitalized at 26 weeks gestation because of preterm labor. A ...

Progression of pulmonary interstitial emphysema (PIE) to single or multiple pneumatoceles is uncommon, but may be seen in extremely premature infants with respiratory distress syndrome (RDS) on ...