Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size remains moderately enlarged . The aorta remains tortuous and diffusely calcified . Pulmonary vasculature is not engorged . Patchy opacities in the lung bases likely reflect minimal atelectasis . There is no focal consolidation , pleural effusion or pneumothorax . S - shaped scoliosis of the thoracolumbar spine is re - demonstrated .
    OUTPUT:
    
Minimal bibasilar atelectasis .