Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Blunting of the posterior costophrenic angles is compatible with small bilateral pleural effusions . Linear bibasilar opacities are suggestive of atelectasis . Superiorly , the lungs are clear . Cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities .
    OUTPUT:
    
Small bilateral pleural effusions with adjacent atelectasis . Superimposed infection is difficult to exclude .