Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are persistent bibasilar opacities , which are now worse on the left than on the right , previously worse on the right than on the left . Superiorly , the lungs are clear . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities .
    OUTPUT:
    
Bibasilar opacities , now worse on the left compared to the right suspicious for aspiration and / or infection