Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mild - to - moderately enlarged . There is a patchy right basilar opacity , most likely in the right lower lobe , although relatively vague . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Findings concerning for pneumonia in the appropriate setting versus potentially atelectasis or scarring in the right lower lobe .