Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are within normal limits however there is mild flattening of the hemidiaphragms within increased AP diameter of the thorax which may reflect COPD . No consolidation , pneumothorax or pleural effusion seen . The heart is not enlarged . Scarring versus atelectasis of the bilateral lung bases . Focal eventration of the right hemidiaphragm unchanged compared to the prior CT .
    OUTPUT:
    
No acute cardiopulmonary process seen . Findings suggestive of COPD .