Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . Again seen is a large hiatal hernia with adjacent atelectasis . There is no focal consolidation , pleural effusion or pneumothorax . The cardiomediastinal and hilar contours are unchanged . There are aortic knob calcifications .
    OUTPUT:
    
Unchanged large hiatal hernia . No evidence of pneumonia .