Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated but grossly clear . Small bilateral pleural effusions are unchanged on the right and decreased on the left . There is no pneumothorax . Mild cardiomegaly despite the projection is unchanged . Aortic arch calcifications are incidentally noted . Multiple metallic right upper quadrant surgical clips are per imaged . The heterogeneous appearance of the bones corresponds to known metastases .
    OUTPUT:
    
Small bilateral pleural effusions .