Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size remains mildly enlarged , unchanged . Mediastinal and hilar contours are similar . Pulmonary vasculature is not engorged . Chronic fibrotic changes with bronchiectasis are again noted at the lung bases , with minimal chronic interstitial abnormality also seen along the periphery of both lungs , not significantly changed in the interval . No new focal consolidation , pleural effusion or pneumothorax is present . No acute osseous abnormalities detected .
    OUTPUT:
    
Chronic fibrotic changes most pronounced at the lung bases without new focal consolidation .