What X-ray finding is characteristic of transient tachypnea of the newborn (TTN)?

The characteristic X-ray finding for transient tachypnea of the newborn (TTN) is often described as a sunburst pattern with perihilar streakiness. This finding results from the presence of retained fetal lung fluid, which causes increased opacity in the central lung fields and streaky markings around the hilum. This imaging manifestation reflects the physiological process seen in TTN, where the baby's lungs are still clearing out excess fluid that was present before birth.

In the context of TTN, identifying this specific pattern can aid clinicians in differentiating TTN from other respiratory conditions like respiratory distress syndrome (RDS) or pneumonia. The sunburst pattern helps to distinguish TTN from other forms of pulmonary pathology and is particularly noted when assessing the newborn during the first hours of life when symptoms of TTN typically present. Understanding these radiographic features is crucial for neonatal practitioners in managing and providing appropriate care for affected infants.