Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Increased interstitial markings are seen throughout the lungs without predominant basilar distribution , overall similar compared to prior film and PET - CT . There is no superimposed focal consolidation , effusion , or pneumothorax . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities detected .
    OUTPUT:
    
Bibasilar predominant increased interstitial markings compatible with patient 's known chronic interstitial lung disease . No superimposed acute cardiopulmonary process .