Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the prior exam , there is no significant change . Again , the lungs are mildly hyperinflated with flattening of the hemidiaphragms . There is no consolidation , pulmonary edema , pleural effusion , or pneumothorax . The cardiomediastinal silhouette is normal .
    OUTPUT:
    
No acute cardiopulmonary process .