Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Two AP frontal views of the chest were obtained . Increased lucency at the bilateral apices is likely due to emphysema . Previously noted bibasilar airspace opacities have resolved . There is no consolidation , pulmonary edema , pleural effusion , or pneumothorax . The cardiomediastinal silhouette is normal , and unchanged .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Mild emphysematous changes .