Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since ___ , mild pulmonary edema , small bilateral pleural effusions and bilateral lower lung atelectasis ( left side more than right ) , have improved . Mildly enlarged heart size , mediastinal and hilar contours are stable . There is no pneumothorax .
    OUTPUT:
    
Since ___ , mild pulmonary edema , small effusions and left lower lung atelectasis have improved .