This 3900-g male infant was the product of a normal term pregnancy and delivery. Amniotic fluid was judged to be normal in volume. The infant's Apgar scores were 8 at one minute and 9 at five minutes.
At 12 hours of age, the infant became tachypneic and cyanotic and developed sternal retractions. Physical examination revealed that his breath sounds were decreased on the right side and the heart sounds were diminished and displaced to the left side. The infant required supplemental oxygen to correct his hypoxia. Chest roentgenograms were obtained (Fig 1).
Forty-eight hours later, the infant was still tachypneic, although he was breathing room air. All bacteriologic cultures were negative. An ultrasound examination of the chest was performed in longitudinal and transverse planes (Fig 2). Results of the abdominal ultrasound examination were normal.
Denouement and Discussion
Extralobar Pulmonary Sequestration
Fig 1.—Anteroposterior (left) and lateral (right)