IMPRESSION:
Combination of consolidation and moderate effusion at the base of the right
 lung has not improved since  4:23 a.m.  The elliptical lucency
 first noted on that examination persists.  Given its rapid development, I
 doubt that it is in an abscess and suggest instead that it is either a
 pneumatocele, which may have developed during cardiac compressions or most
 likely due to fluid in the right major fissure surrounding and incomplete or
 adherent fissure.
 Mild pulmonary vascular engorgement and borderline interstitial edema seen
 most readily in the left lung have increased and there is more left pleural
 effusion.  Heart size is normal.  Azygos distention mild.
 Tip of endotracheal tube at the upper margin of the clavicles, 5 cm from the
 carina should not be withdrawn any further.  No pneumothorax.  Left infrahilar
 consolidation is most usually due to atelectasis, which worsened after the
 chest CT on , but may have improved slightly since .