Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no focal consolidation , pleural effusion or pneumothorax . Prominent bilateral interstitial markings is unchanged from the prior radiograph in ___ , and reflects underlying chronic lung disease . Cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities identified .
    OUTPUT:
    
Chronic lung disease , COPD . without acute cardiopulmonary process .