Case 2: Rapidly Growing Neck Mass in an Extremely Preterm Infant with Pulmonary Hypertension

A male infant is born at a gestational age of 27 weeks, 4 days via cesarean delivery to a 27-year-old gravida 2, para 1 woman with severe preeclampsia (treated with intravenous magnesium and nifedipine). The pregnancy had been complicated by systemic lupus erythematosus (treated with prednisone and plaquenil) and type 2 diabetes (treated with insulin and aspirin). Second-trimester prenatal ultrasonography at 25 weeks’ gestation reveals...