Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are unremarkable . There is mild calcification of the aortic knob . The pulmonary vascularity is not engorged . Small bilateral pleural effusions with adjacent lower lobe streaky opacities likely reflect compressive atelectasis . No pneumothorax is identified . There is evidence of prior kyphoplasty of a vertebral body at the thoracolumbar junction .
    OUTPUT:
    
Small bilateral pleural effusions with bibasilar atelectasis .