Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to ___ , there is no significant interval change . Again seen is mild interstitial prominence which is likely due to an underlying background of emphysema . The lungs are fully expanded , and the pleural surfaces are normal without pleural effusion or pneumothorax . Heart size , mediastinal contour , and hila are normal . Old healed rib fracture along the lateral right seventh rib is again seen . Atherosclerotic calcification of the aortic arch is noted .
    OUTPUT:
    
No evidence of acute cardiopulmonary process . Specifically , no evidence of pneumonia .