Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Pneumoperitoneum is identified under the left hemidiaphragm . The extent of pneumoperitoneum appears decreased compared to the prior exam . Low lung volumes are present . Heart size is normal . Aorta is tortuous and diffusely calcified . The pulmonary vascularity is not engorged . Atelectatic changes are noted in both lung bases . No focal consolidation , pleural effusion or pneumothorax is identified . No acute osseous abnormality is seen . Scoliosis of the thoracolumbar spine , convex to the right is re - demonstrated . Multiple clips are noted within the left upper quadrant of the abdomen .
    OUTPUT:
    
1 . Pneumoperitoneum , decreased in extent compared to the recent prior study . 2 . Low lung volumes with bibasilar atelectasis .