Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are extremely low with moderate to severe cardiomegaly , unchanged from prior . Again seen is a large hiatal hernia . No definite focal consolidation . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
1 . Low lung volumes without focal consolidation . 2 . Large hiatal hernia .