Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low , accentuating the cardiomediastinal contours . With this limitation , the heart size is likely normal . There is no pleural effusion or pneumothorax . There is no focal consolidation concerning for pneumonia . Atelectatic changes are noted at the lung bases .
    OUTPUT:
    
No focal consolidation for pneumonia . Atelectasis .