Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mild - to - moderately enlarged , as before . The aortic arch is calcified . There is similar marked relative elevation of the right hemidiaphragm compared to the left side . There are mild interstitial changes which suggest slight fluid overload or pulmonary congestion . Particularly evident on the lateral view are posterior opacities along the elevated right hemidiaphragm which are suggestive of associated atelectasis . It is difficult to exclude trace pleural effusions . There is no pneumothorax . Surgical clips project over the right upper quadrant . Multiple air - fluid levels are seen within bowel including the colon but without dilatation . Vague opacity in the left mid lung appears unchanged and suggests minor atelectasis or scarring . There is mild rightward convex curvature along the thoracic spine . The bones may be demineralized to some degree .
    OUTPUT:
    
1 . Findings suggesting mild vascular congestion . 2 . Patchy left mid lower lung opacities that appear unchanged and suggest minor atelectasis or scarring . 3 . Similar severe elevation of the right hemidiaphragm . 4 . Air-fluid levels in bowel of the upper abdomen , a non-specific pattern .