Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison with chest radiographs from ___ , there is little overall change . Bibasilar and left retrocardiac opacities are stable , likely reflecting atelectasis , though superimposed pneumonia can not be definitively excluded in the appropriate clinical setting . No new focal consolidation . No pneumothorax . Small bilateral effusions are stable . There is mild central vascular congestion with overt pulmonary edema . Gaseous distention of loop of bowel in the left upper quadrant , presumably stomach , is unchanged .
    OUTPUT:
    
1 . Persistent bibasilar and retrocardiac opacities likely represent atelectasis , though superimposed pneumonia can not be definitively excluded in the appropriate clinical setting . 2 . Unchanged probable small pleural effusions . 3 . Mild central vascular congestion without overt pulmonary edema .