Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouette is stable . Lungs are well expanded and clear . No focal consolidations concerning for pneumonia are identified . There are small bilateral pleural effusions . There is no pneumothorax . On the lateral view , there is opacification of an extrapleural mass . This finding was not identified on prior CT examination and could well be an artifact of overlying structures . Remaining osseous structures are intact .
    OUTPUT:
    
Small bilateral pleural effusions .