Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . As compared with a CT scan from five days earlier , the areas of scarring in the bilateral upper lobes with known cavitation are essentially unchanged . There is increased consolidation in the right lower lobe which is compatible with pneumonia . There is no pneumothorax . No large effusion . Cardiomediastinal silhouette is unchanged . Bony structures remain intact .
    OUTPUT:
    
No pneumothorax . Stable scarring and cavitation in the upper lobes . Slight increase in right lower lobe opacity concerning for slight progression of pneumonia .