Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The aorta is unfolded . Mediastinal and hilar contours are unchanged . Pulmonary vasculature is normal . Lungs are clear . No pneumothorax is present . Minimal blunting of the costophrenic angles on the lateral view posteriorly may suggest the presence of tiny bilateral pleural effusions . No acute osseous abnormalities identified .
    OUTPUT:
    
Possible tiny bilateral pleural effusions . Otherwise no acute cardiopulmonary abnormality .