Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low and there is resultant bibasilar atelectasis and accentuation of the cardiac silhouette with stable mild cardiomegaly . . There is no consolidation , pleural effusion or pneumothorax . There is no free air beneath the hemidiaphragms . A small hiatal hernia is unchanged .
    OUTPUT:
    
No free air beneath the hemidiaphragms . Small hiatal hernia unchanged .