Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is top normal . The hilar and mediastinal contours are normal . There is atelectasis of the lower lungs , less on the left . Some atelectasis is also seen in the upper lobes . If any , there is a tiny left pleural effusion . There are no focal consolidations . There is no pneumothorax .
    OUTPUT:
    
Atelectasis of upper and lower lobes with no pneumothorax .