Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again , low lung volumes are seen . Increased interstitial markings are seen throughout the lungs , most notably at the bases , particularly on the left . This is similar when compared to prior . No new focal consolidation . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormality is identified .
    OUTPUT:
    
Increased interstitial markings throughout the lungs most suggestive of a chronic interstitial process . No definite superimposed acute process .