Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is top normal . Mediastinal and hilar contours are unchanged . There are mild atherosclerotic calcifications of the aortic knob . Pulmonary vasculature is normal . Trace bilateral pleural effusions have decreased in size compared to the previous exam . No focal consolidation or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
Tiny bilateral pleural effusions , decreased in size compared to the previous exam .