FINDINGS:
Re-identified is a left chest cardiac device with associated dual leads
 projecting over the ventricles, unchanged.  EKG leads overlie the chest. Lung
 volumes remain low.  The cardiomediastinal silhouette is stable, likely
 accentuated due to technique and low lung volumes.  The hila are within normal
 limits.  Bibasilar opacities are increased from prior, consistent with
 atelectasis.  There is no sizable pleural effusion.  No pneumothorax.

IMPRESSION:
Low lung volumes and bibasilar atelectasis.  Resolution of left pleural
 effusion.  No pneumothorax.