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 ...

Pneumothorax, commonly called a collapsed lung, can be painful and in certain situations, may be life-threatening. In a healthy body, the lungs are touching the walls of the chest. A pneumothorax ...