Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged . The aorta is partly calcified . The mediastinal and hilar contours appear similar . There is a widespread mild interstitial abnormality suggestive of pulmonary vascular congestion . Patchy opacities in the left lower lung are probably post-operative including visualization of a clip and chain sutures . The only change is increasing fluid within a loculated hydropneumothorax , with corresponding decrease in air , located along the left lateral chest wall , of uncertain significance in the short - term postoperative course . Mild degenerative changes are similar along the thoracic spine . Subcutaneous emphysema along the left lateral chest wall has mostly resolved .
    OUTPUT:
    
1 . Increased interstitial abnormality suggesting mild - to - moderate pulmonary congestion . 2 . Similar post-operative changes in the left lower hemithorax , aside from increased fluid in a left lateral loculated hydropneumothorax with a corresponding likely decrease in total air content .