Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Streaky bibasilar airspace opacities likely reflect atelectasis . There is no evidence of lobar consolidation , pleural effusion , pneumothorax , or pulmonary edema . The cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
Low lung volumes and bibasilar atelectasis . No evidence of acute cardiopulmonary process .