Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild bibasilar atelectasis , slightly worse on the left than the right . The lungs are otherwise clear without a consolidation or pulmonary edema . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is normal . Sternal wires are intact .
    OUTPUT:
    
No acute cardiopulmonary process ; specifically , no evidence of a pneumothorax .