IMPRESSION:
Compared to prior chest radiographs  through  at 12:13.
 
 Previous mild pulmonary edema has resolved, substantial left lower lobe
 atelectasis and moderate left pleural effusion have decreased.  No
 pneumothorax.  Stable moderate enlargement of cardiac silhouette.  Left
 jugular line passes as far as the left brachiocephalic vein where it is
 obscured by overlying right atrial biventricular pacer defibrillator leads
 which follow their expected courses, continuous from the left pectoral
 generator, unchanged.