Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is normal . The mediastinal and hilar contours are unremarkable . Increased interstitial opacities are suggestive of chronic interstitial lung disease , unchanged since ___ . Small pleural effusion on the left is better seen on the concurrently obtained CT of the abdomen and pelvis . No focal consolidation is seen . No pneumothorax or consolidation is appreciated .
    OUTPUT:
    
Chronic interstitial changes with no evidence of pneumonia .