Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the prior radiograph on ___ , there has been interval development of an opacity at the right lung base , which may represent pneumonia in the appropriate clinical setting . There is no pneumothorax or pleural effusions . Cardiomediastinal silhouette is unremarkable . Surgical clips are visualized in the right axilla compatible with prior axillary node dissection . Additional clips are noted in the epigastrium .
    OUTPUT:
    
New right lung base opacity , possibly representing pneumonia .