Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP view of the chest was reviewed . Cardiomediastinal and hilar contours remain stable . There is no pleural effusion or pneumothorax . Lung volumes remain low . Atelectasis is again seen at the left lung base . Focal opacity in the right mid lung zone is in the area of previously noted atelectasis . Chronic deformity of the right distal clavicle is post-traumatic .
    OUTPUT:
    
Low lung volumes and bibasilar atelectasis . No focal consolidation concerning for pneumonia .