Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal an lateral views of the chest were obtained . Patchy bibasilar opacities could relate to atelectasis although infectious process is not excluded in the appropriate clinical setting . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Patchy bibasilar opacities could be due to atelectasis but infection is not excluded in the appropriate clinical setting .