Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Increased interstitial markings is seen the lungs , particularly on the right in the mid to upper lung . Lung volumes are appropriate . There is a more focal region of opacity in the right mid lung laterally . There is no effusion . Cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities .
    OUTPUT:
    
Findings suggest chronic interstitial process . More focal region of opacity in the right mid lung laterally could be related to prior VATS . Correlation with interval films should they become available would be of use .