Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Elevated left hemidiaphragm is unchanged with bibasilar atelectasis . No focal consolidation concerning for pneumonia . No effusion , pneumothorax or convincing signs of edema . The heart and mediastinal contours appear stable . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
No acute findings in the chest . Mild bibasilar atelectasis .