Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Scarring at the left base is stable from multiple prior radiographs . The lungs are otherwise clear without consolidation or edema . There is no hilar lymphadenopathy . The size of the cardiac silhouette is at the upper limits of normal , but stable . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Stable left basilar scarring . No significant change from prior radiographs to indicate progression of disease .