Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . The cardiac , mediastinal and hilar contours are unchanged , and the pulmonary vasculature is normal . Chronic interstitial opacities in a peripheral and basilar predominant pattern are re - demonstrated , more pronounced in the left lung , and compatible with known chronic interstitial lung disease . No new focal consolidation , pleural effusion or pneumothorax is evident . There is diffuse gaseous distention of the bowel loops with chronic elevation of the right hemidiaphragm again noted .
    OUTPUT:
    
No substantial interval change in chronic interstitial lung disease without acute cardiopulmonary abnormality .