FINDINGS:
There is a new dense right central opacity approximately 7 cm x 3
 cm on frontal view.  Given the rapid onset of this finding, the differential
 is limited to airspace consolidation  atelectasis.  Given previous
 radiographic evidence of slow neo-esophageal/gastric emptying, it is possible
 that patient had aspirated contrast material.  This would also explain the
 dense opacity seen on lateral projection.  However, other radiopaque fluid,
 such as fluid, pus,  ,  be filling the airspace in this region. 
 Adjacent to this dense opacity are ill-defined peripheral opacities which is
 not matched on the contralateral side.  The left lung is unremarkable.  There
 is no pleural effusion  pneumothorax.  There is pronounced flattening of the
 hemidiaphragms.  The cardiomediastinal silhouette is unchanged and within
 normal limits.  The pleural surfaces are unremarkable.

IMPRESSION:
Large dense right central opacity which  represent collapse 
 airspace consolidation with adjacent area of asymmetric pulmonary edema. 
 Given history of lymphadenopathy, collapse could be secondary to nodal
 compression of an airway.  
 
 Alternatively, given recent history of oral contrast and poor gastric
 emptying, opacity  represent aspirated contrast material.  Consolidation
 also  be secondary to a fistula between the neo-esophagus and the right
 lung.
 
 If this finding represent consolidation, the radiopaque material cannot be
 identified definitely and  represent , fluid  pus.
 
 CT imaging is highly recommended for further evaluation of this finding.
 
 These findings were discussed with Dr.  at 12:45 p.m. via phone by
 .