Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The focal opacity at the left lower lobe likely representative of atelectasis . Scarring / band - like atelectasis in the right lower lobe appears stable . There is a large hiatal hernia . The heart remains moderately enlarged but stable . The aorta appears tortuous and may be enlarged in the lower thorax . No acute fractures are identified .
    OUTPUT:
    
1 . Left lower lobe opacity which is most likely representative of atelectasis . If clinical suspicion for pneumonia is high , a lateral view should be obtained . 2 . Large hiatal hernia .