Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes cause bronchovascular crowding . There is no focal consolidation , pleural effusion , pneumothorax , or pulmonary edema . The cardiomediastinal silhouette is normal . Mild atelectasis in the right lung base is noted .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .