Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: When compared to prior , there has been no significant interval change . Increased interstitial abnormality in the lungs , right greater than left is similar compared to prior . There is no confluent consolidation or effusion . Cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities identified .
    OUTPUT:
    
Persistent increased interstitial markings in the lungs suggesting chronic underlying interstitial process , similar to prior , without superimposed acute cardiopulmonary process .