Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are stable . There is no pneumothorax or large pleural effusion . The lungs are well expanded . Bibasilar opacities may reflect atelectasis , but evolving consolidation is not excluded . There is resolution of previously noted pulmonary edema . Cervical spine hardware is partly visualized .
    OUTPUT:
    
Bibasilar atelectasis . No evidence of heart failure or pneumonia .