Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Streaky bibasilar opacities are more notable on the left , and are suggestive of atelectasis , although aspiration or pneumonia can not be entirely excluded . No pleural effusion , pneumothorax , or pulmonary edema . The cardiomediastinal silhouette is unchanged in appearance .
    OUTPUT:
    
Bibasilar opacities favoring atelectasis , although pneumonia or aspiration can not be entirely excluded .