Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patchy and linear bibasilar opacities are present , right greater than left , some associated mild volume loss . Lung volumes are slightly lower compared to the prior exam . The heart is normal in size . No large pleural effusion or pneumothorax . There is a moderate hiatal hernia .
    OUTPUT:
    
1 . Bibasilar patchy and linear opacities may reflect atelectasis or aspiration . Coexisting infectious pneumonia in the right lower lobe is not fully excluded in the appropriate clinical setting . 2 . Moderate hiatal hernia .