Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is continued prominence of the mediastinum unchanged compared to ___ , at which time it appeared to correspond with mediastinal vessels and lymph nodes . There is unchanged bibasilar atelectasis . No overt pulmonary edema . Blunting of the left costophrenic angle likely relates prominent epicardial fat pad evident on the prior CT may explain this finding .
    OUTPUT:
    
Unchanged exam . Bibasilar atelectasis .