Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . The lungs are clear of focal opacities concerning for pneumonia . Streaky atelectasis noted at the right lung base . Cardiac silhouette is normal in size . Hilar and mediastinal contours are normal . No pleural effusion . No evidence of pneumothorax .
    OUTPUT:
    
No evidence of pneumonia . Right lung base atelectasis .