Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube terminates 3 .9 cm above the carina . A nasogastric tube extends to at least the level of the stomach . The cardiac and mediastinal contours are within normal limits . There is no pneumothorax or focal consolidation . A trace left pleural effusion is present .
    OUTPUT:
    
Trace left pleural effusion .