Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A comparison chest radiograph from ___ , there has been interval placement of a Swan - Ganz catheter terminates in the right pulmonary artery . Enteric tube terminates in the upper stomach . ETT tip terminates approximately 7 cm above the carina . Vascular engorgement and mild pulmonary edema is minimally improved . Left retrocardiac opacity , likely atelectasis , has mildly improved . Substantial cardiomegaly is unchanged . Severe emphysema .
    OUTPUT:
    
1 . Swan - Ganz catheter terminates in the right pulmonary artery . 2 . Minimally improved vascular engorgement and mild pulmonary edema . 3 . Mildly improved left lower lobe atelectasis . 4 . Severe emphysema .