Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated with mild vascular congestion . New heterogeneous right lower lobe opacity . Left lung is clear . No pleural effusion or pneumothorax . Heart is top - normal in size , unchanged since prior . Mediastinal contour , and hila are unremarkable . Replaced aortic valve is unchanged in position since the prior examination .
    OUTPUT:
    
1 . New right lower lobe opacity is worrisome for pneumonia / aspiration pneumonia in the appropriate clinical setting . 2 . Mild vascular congestion .