-Transient Tachypnoea of the Newborn (TTN, also called Retained Fetal Lung Fluid or "Wet Lung") is a diagnosis of exclusion.-Typical radiologic features are ill-defined but include:
1-Increased central vascular markings ("star-burst" appearance)
2-Hyperaeration
3-Evidence of interstitial and pleural fluid
4-Prominent interlobar fissures
5-Cardiomegaly
-Because the symptoms and radiological features are non-specific, infection should be considered in the differential diagnosis. Typically, respiratory symptoms resolve within the first 24-hours of life, but occasionally can persist longer.
